Cape Canaveral Space Launch Complex 17

Space Launch Complex 17, previously designated Launch Complex 17, was a launch site at Cape Canaveral Space Force Station, Florida used for Thor and Delta launch vehicles launches between 1958 and 2011.
Originally built in 1956, SLC-17 features two expendable launch vehicle launch pads, SLC-17A and SLC-17B. The pads were operated by the Delta 45|45th Space Wing] and have supported more than 300 Department of Defense, NASA and commercial missile and rocket launches.

History

SLC-17 was built in 1956 by the United States Air Force for use with the PGM-17 Thor missile, the first operational ballistic missile in the arsenal of the United States. It was initially designed for testing suborbital launches of the Thor, in accordance to the IRBM's planned stationing in the United Kingdom as part of Project Emily. Pad 17A supported its first Thor missile launch on 3 August 1957, and Pad 17B supported its first Thor launch on 25 January 1957. As the Thor got wound down from missile use due to the advent of longer-range ICBMs, the site was upgraded in the early 1960s to support a variety of space-oriented launch vehicles derived from the basic Thor booster. Initially starting with the Thor-Able in 1958, these Thor-based rockets came to be called the Delta family of launch vehicles.
Thirty-five early Delta rocket missions were launched from Complex 17 between the beginning of 1960 and the end of 1965. The Air Force transferred Launch Complex 17A to NASA in 1965, but the site was returned to the military in 1988 to support McDonnell Douglas's Delta II program.
As Delta II launches continued over the next decades, Pad 17B was modified in 1997 to support a new, more powerful launch vehicle, the Delta III, which made its maiden flight from the complex on 26 August 1998. The launch ended in failure, as did a second launch the next year. After a third launch on 23 August 2000 placed a mass simulator into a lower than planned orbit, the program was abandoned.
Among the major NASA missions launched from the complex were the Explorer and Pioneer space probes, all of the Orbiting Solar Observatories, the Solar Maximum Mission, biological satellites, the International Cometary Explorer, the TIROS and GOES meteorology satellites, and the Mars Exploration Rovers Spirit and Opportunity.
Following the last military launch, in August 2009, SLC-17A was withdrawn from use, and LC-17B was transferred to NASA for two remaining launches. On 10 September 2011, a Delta II 7920H-10C made the final launch from SLC-17B, carrying NASA's GRAIL spacecraft. All remaining Delta II launches were made from SLC-2W at [Vandenberg Space Force Base|Vandenberg Air Force Base] in California until its ultimate retirement in 2018.
At 11:00 UTC on 12 July 2018, both launch towers had been demolished via controlled demolition to make way for Moon Express to build and test its lunar lander.
As of August 2024, the United States Space Force plans to fully demolish SLC-17 and the neighboring LC-18 in favor of extending Lighthouse Road and reconnecting its two separate sections back together.

Launch statistics

SLC-17A

Thor and early Delta

Thor, Thor-Able, and Thor-Ablestar launches operated by the United States Air Force. Thor-Delta launches operated by NASA.

Later Delta I

All launches operated by NASA.

No.	Date	Time	Launch vehicle	Configuration	Payload	Result	Remarks
68	27 August 1975	01:42	Delta 2000	Thor-Delta 2914	Symphonie-2		First Delta launch from LC-17A using a numerical designation.
69	13 December 1975	01:56	Delta 3000	Thor-Delta 3914	Satcom-1
70	26 March 1976	22:42	Delta 3000	Thor-Delta 3914	Satcom-2
71	10 June 1976	00:09	Delta 2000	Thor-Delta 2914	Marisat-2
72	8 July 1976	23:31	Delta 2000	Thor-Delta 2914	Palapa-A1
73	14 October 1976	22:44	Delta 2000	Thor-Delta 2914	Marisat-3
74	10 March 1977	23:16	Delta 2000	Thor-Delta 2914	NATO 3B
75	13 September 1977	23:21	Delta 3000	Thor-Delta 3914	OTS-1		Rupture in casing of a solid rocket booster lead to loss of launch vehicle 52 seconds after launch.
76	23 November 1977	01:35	Delta 2000	Thor-Delta 2914	Meteosat-1
77	26 January 1978	17:36	Delta 2000	Thor-Delta 2914	International Ultraviolet Explorer		Part of the Explorer program, a space telescope designed to conduct ultraviolet astronomy. Collaboration between NASA, ESA, and SERC.
78	11 May 1978	22:59	Delta 3000	Thor-Delta 3914	OTS-2
79	14 July 1978	10:43	Delta 2000	Thor-Delta 2914	ESA-GEOS-2
80	16 December 1978	00:21	Delta 3000	Thor-Delta 3914	Anik-B1
81	10 August 1979	00:20	Delta 2000	Thor-Delta 2914	Westar-3
82	7 December 1979	01:35	Delta 3000	Thor-Delta 3914	Satcom-3
83	14 February 1980	15:57	Delta 3000	Thor-Delta 3910	Solar Maximum Mission		Heliophysics satellite designed to investigate solar phenomena such as solar flares. Was later visited by Space Shuttle Challenger during STS-41-C in order to have its altitude control system repaired.
84	9 September 1980	22:27	Delta 3000	Thor-Delta 3914	GOES-4		Launched as GOES-D. Part of the Geostationary Operational Environmental Satellites system of satellites.
85	15 November 1980	22:49	Delta 3000	Thor-Delta 3910	SBS-1
86	22 May 1981	22:29	Delta 3000	Thor-Delta 3914	GOES-5		Launched as GOES-E. Part of the Geostationary Operational Environmental Satellites system of satellites.
87	24 September 1981	23:09	Delta 3000	Thor-Delta 3910	SBS-2
88	20 November 1981	01:37	Delta 3000	Thor-Delta 3910	Satcom 3R
89	16 January 1982	01:54	Delta 3000	Thor-Delta 3910	Satcom 4
90	26 February 1982	00:04	Delta 3000	Thor-Delta 3910	Westar 4
91	10 April 1982	06:47	Delta 3000	Thor-Delta 3910	Insat 1A
92	9 June 1982	00:24	Delta 3000	Thor-Delta 3910	Westar 5
93	28 April 1983	22:26	Delta 3000	Thor-Delta 3914	GOES-6		Launched as GOES-F. Part of the Geostationary Operational Environmental Satellites system of satellites.
94	28 July 1983	22:49	Delta 3000	Thor-Delta 3920	Telstar-3A
95	22 September 1983	22:16	Delta 3000	Thor-Delta 3920	Galaxy 2
96	16 August 1984	14:30	Delta 3000	Thor-Delta 3924	AMPTE-CCE		Part of the Explorer program, aiming to study earth's magnetosphere.
97	14 November 1984	00:34	Delta 3000	Thor-Delta 3914	NATO 3D
98	3 May 1986	22:18	Delta 3000	Thor-Delta 3914	GOES-G		Part of the Geostationary Operational Environmental Satellites system of satellites. First stage electric failure lead to loss of control and destruction of rocket 90 seconds after launch.
99	26 February 1987	23:05	Delta 3000	Thor-Delta 3914	GOES-7		Launched as GOES-H. Part of the Geostationary Operational Environmental Satellites system of satellites. Final Delta I launch from LC-17A.

Delta II

Launches before August 1997 operated by McDonnell Douglas. Launches between then and 2007 operated by Boeing. Launches since 2007 operated by United Launch Alliance.

No.	Date	Time	Launch vehicle	Configuration	Payload	Result	Remarks
100	14 February 1989	18:30	Delta II	Thor-Delta 6925	USA-35		Part of the Global Positioning System. Maiden flight of the Delta II. First GPS Block II launch. First GPS launch from a Delta rocket and first GPS launch from Cape Canaveral.
101	10 June 1989	22:30	Delta II	Thor-Delta 6925	USA-38		Part of the Global Positioning System.
102	18 August 1989	05:58	Delta II	Thor-Delta 6925	USA-42		Part of the Global Positioning System.
103	21 October 1989	09:31	Delta II	Thor-Delta 6925	USA-47		Part of the Global Positioning System.
104	24 January 1990	22:55	Delta II	Thor-Delta 6925	USA-50		Part of the Global Positioning System.
105	26 March 1990	02:45	Delta II	Thor-Delta 6925	USA-54		Part of the Global Positioning System.
106	1 June 1990	21:48	Delta II	Thor-Delta 6920-10	ROSAT		Space telescope designed to conduct x-ray astronomy. Collaboration between NASA and DLR.
107	2 August 1990	05:39	Delta II	Thor-Delta 6925	USA-63		Part of the Global Positioning System.
108	1 October 1990	21:56	Delta II	Thor-Delta 6925	USA-64		Part of the Global Positioning System.
109	26 November 1990	21:39	Delta II	Thor-Delta 7925	USA-66		Part of the Global Positioning System. First Delta II 7000 launch.
110	4 July 1991	02:32	Delta II	Thor-Delta 7925	USA-71		Part of the Global Positioning System.
111	7 June 1992	16:40	Delta II	Thor-Delta 6920-10	Extreme Ultraviolet Explorer		Part of the Explorer program, a space telescope designed at conducting ultraviolet astronomy.
112	24 July 1992	14:26	Delta II	Thor-Delta 6925	Geotail		Satellite designed to study Earth's magnetosphere, a collaboration between NASA and ISAS. Final launch of the Delta II 6000.
113	9 September 1992	08:57	Delta II	Thor-Delta 7925-9.5	USA-84		Part of the Global Positioning System.
114	22 November 1992	23:54	Delta II	Thor-Delta 7925-9.5	USA-85		Part of the Global Positioning System.
115	3 February 1993	02:55	Delta II	Thor-Delta 7925	USA-88		Part of the Global Positioning System.
116	30 March 1993	03:09	Delta II	Thor-Delta 7925	USA-90		Part of the Global Positioning System.
117	13 May 1993	00:07	Delta II	Thor-Delta 7925	USA-91		Part of the Global Positioning System.
118	26 June 1993	13:27	Delta II	Thor-Delta 7925	USA-92		Part of the Global Positioning System.
119	8 December 1993	00:48	Delta II	Thor-Delta 7925	NATO 4B
120	10 March 1994	03:40	Delta II	Thor-Delta 7925	USA-100		Part of the Global Positioning System.
121	30 December 1995	13:48	Delta II	Thor-Delta 7920-10	Rossi X-ray Timing Explorer		Part of the Explorer program, designed to conduct x-ray astronomy through tracking timing from sources.
122	16 July 1996	00:50	Delta II	Thor-Delta 7925	USA-126		Part of the Global Positioning System.
123	12 September 1996	08:49	Delta II	Thor-Delta 7925	USA-128		Part of the Global Positioning System.
124	7 November 1996	17:00	Delta II	Thor-Delta 7925	Mars Global Surveyor		First launch of the Mars Exploration Program, designed to study the titular planet and characteristics like geology and climate from orbit. First Delta II launch to another planet, and first successful American mission to Mars since Viking 2 in 1975.
125	17 January 1997	16:28	Delta II	Thor-Delta 7925-9.5	GPS IIR-1		Part of the Global Positioning System. Burnthrough in one of the solid rocket boosters activated range safety protocols 13 seconds after launch, damaging and scattering debris across the pad, nearby cars, and the adjacent Air Force Space and Missile Museum.
126	20 May 1997	22:39	Delta II	Thor-Delta 7925-9.5	Thor II
127	23 July 1997	03:43	Delta II	Thor-Delta 7925-9.5	USA-132		Part of the Global Positioning System. Last Delta II flight operated by McDonnell Douglas prior to their merger with Boeing.
128	25 August 1997	14:39	Delta II	Thor-Delta 7920-8	Advanced Composition Explorer		Part of the Explorer program, designed to study the solar wind and interplanetary medium from a Lissajous orbit.
129	6 November 1997	00:30	Delta II	Thor-Delta 7925	USA-134		Part of the Global Positioning System.
130	14 February 1998	14:34	Delta II	Thor-Delta 7420-10C	Globalstar-1
131	24 April 1998	22:38	Delta II	Thor-Delta 7420-10C	Globalstar-2
132	10 June 1998	00:35	Delta II	Thor-Delta 7925-9.5	Thor III
133	24 October 1998	12:08	Delta II	Thor-Delta 7326	Deep Space 1		First launch of the New Millennium Program, designed to demonstrate new technologies through exploring 9969 Braille and 19P/Borrelly. First NASA spacecraft to use ion propulsion.
134	11 December 1998	18:45	Delta II	Thor-Delta 7425	Mars Climate Orbiter		Part of the Mars Exploration Program, designed to study the titular planet and characteristics such as its climate and atmosphere from orbit. Launch was a success, but a measurement mismatch between NASA's SI units and manufacturer Lockheed Martin's US customary resulted in the spacecraft burning up in the atmosphere during orbit insertion.
135	7 February 1999	21:04	Delta II	Thor-Delta 7426	Stardust		Part of the Discovery Program, designed to return samples from the coma of comet 81P/Wild. First unmanned sample-return mission from NASA.
136	24 June 1999	15:44	Delta II	Thor-Delta 7320-10	Far Ultraviolet Spectroscopic Explorer		Part of the Explorer program, a space telescope designed to conduct ultraviolet astronomy, specifically with detecting deuterium in the early universe.
137	25 July 1999	07:46	Delta II	Thor-Delta 7420-10C	Globalstar-5
138	7 October 1999	12:51	Delta II	Thor-Delta 7925-9.5	USA-145		Part of the Global Positioning System.
139	11 May 2000	01:48	Delta II	Thor-Delta 7925-9.5	USA-150		Part of the Global Positioning System.
140	16 July 2000	09:17	Delta II	Thor-Delta 7925-9.5	USA-151		Part of the Global Positioning System.
141	10 November 2000	17:14	Delta II	Thor-Delta 7925-9.5	USA-154		Part of the Global Positioning System.
142	30 January 2001	07:55	Delta II	Thor-Delta 7925-9.5	USA-156		Part of the Global Positioning System.
143	7 April 2001	15:02	Delta II	Thor-Delta 7925-9.5	2001 [Mars Odyssey]		Part of the Mars Exploration Program, designed to study the titular planet from orbit. Set record for longest operational spacecraft around another celestial body.
144	8 August 2001	16:13	Delta II	Thor-Delta 7326-9.5	Genesis		Part of the Discovery Program, designed to return samples of the solar wind. Launch and mission was a success, but drogue parachute failure led to return capsule crashing onto surface, with most samples getting contaminated.
145	3 July 2002	06:47	Delta II	Thor-Delta 7425	CONTOUR		Part of the Discovery Program, designed to explore comets such as 2P/Encke, 73P/Schwassmann–Wachmann, and 6P/d'Arrest. Launch was a success, but spacecraft contact was lost a month into mission.
146	31 March 2003	22:09	Delta II	Thor-Delta 7925-9.5	USA-168		Part of the Global Positioning System.
147	10 June 2003	15:58	Delta II	Thor-Delta 7925-9.5	Mars Exploration Rover-A Spirit		First of two launches of the Mars Exploration Rover mission, two rovers designed to explore the titular planet's surface for extended periods of time.
148	21 December 2003	08:05	Delta II	Thor-Delta 7925-9.5	USA-175		Part of the Global Positioning System.
149	20 November 2004	17:16	Delta II	Thor-Delta 7320-10C	Neil Gehrels Swift Observatory		Part of the Explorer program, a space telescope designed to conduct gamma-ray astronomy and to study gamma-ray bursts.
150	26 September 2005	03:37	Delta II	Thor-Delta 7925-9.5	USA-183		Part of the Global Positioning System.
151	21 June 2006	22:15	Delta II	Thor-Delta 7925-9.5	Microsatellite Technology Experiment		Two spacecraft and an experimental upper stage, also known as USA-187, USA-188, and USA-189 respectively. Collaboration between the Navy, Air Force, and DARPA.
152	25 September 2006	18:50	Delta II	Thor-Delta 7925-9.5	USA-190		Part of the Global Positioning System.
153	17 November 2006	19:12	Delta II	Thor-Delta 7925-9.5	USA-192		Part of the Global Positioning System. Final Delta II launch conduction by Boeing before transfer to United Launch Alliance.
154	4 August 2007	09:26	Delta II	Thor-Delta 7925	Phoenix		Part of the Mars Exploration Program, designed to explore the titular planet and the soil, climate, and potential water in its polar regions.
155	17 October 2007	12:23	Delta II	Thor-Delta 7925-9.5	USA-196		Part of the Global Positioning System.
156	20 December 2007	20:04	Delta II	Thor-Delta 7925-9.5	USA-199		Part of the Global Positioning System.
157	15 March 2008	06:10	Delta II	Thor-Delta 7925-9.5	USA-201		Part of the Global Positioning System.
158	24 March 2009	08:34	Delta II	Thor-Delta 7925-9.5	USA-203		Part of the Global Positioning System.
160	17 August 2009	10:35	Delta II	Thor-Delta 7925	USA-206		Part of the Global Positioning System. Final Delta and Thor launch from SLC-17A. Most recent launch from SLC-17A.

SLC-17B

Thor and early Delta

Thor and Thor-Ablestar launches operated by the United States Air Force. Thor-Delta launches operated by NASA.

No.	Date	Time	Launch vehicle	Configuration	Payload	Result	Remarks
1	26 January 1957	Unknown	PGM-17 Thor	Thor DM-18	Suborbital test		Maiden flight of the PGM-17 Thor and of the Delta family. Contaminated liquid oxygen caused a loss of trust, resulting with vehicle falling back onto pad and exploding.
2	20 April 1957	04:33	PGM-17 Thor	Thor DM-18	Suborbital test		Erroneous console readout resulted in range safety protocols being mistakenly engaged 35 seconds after launch.
3	20 September 1957	Unknown	PGM-17 Thor	Thor DM-18	Suborbital test		First successful Thor launch and from LC-17.
4	11 October 1957	16:33	PGM-17 Thor	Thor DM-18	Suborbital test		Turbopump failed 152 seconds after launch. Flight considered a partial success.
5	7 December 1957	22:11	PGM-17 Thor	Thor DM-18	Suborbital test
6	28 February 1958	13:08	PGM-17 Thor	Thor DM-18	Suborbital test		Engines prematurely shut down 109 seconds after launch.
7	19 April 1958	13:30	PGM-17 Thor	Thor DM-18	Suborbital test		Suspected fuel line obstruction led to loss of engine thrust, with vehicle falling back onto pad and exploding.
8	13 June 1958	15:06	PGM-17 Thor	Thor DM-18	Suborbital test
9	13 July 1958	06:36	PGM-17 Thor	Thor DM-18	Suborbital test		BECO and warhead separation was never received. Flight considered success otherwise.
10	26 July 1958	06:40	PGM-17 Thor	Thor DM-18	Suborbital test		Valve malfunction led to loss of thrust and vehicle breakup 55 seconds after launch.
11	5 November 1958	08:53	PGM-17 Thor	Thor DM-18A	Suborbital test		Flight control failure led to RSO protocols being activated 58 seconds after launch.
12	26 November 1958	09:09	PGM-17 Thor	Thor DM-18A	Suborbital test		Guidance system power failure led to warhead overshooting target by 22 miles.
13	17 December 1958	04:00	PGM-17 Thor	Thor DM-18A	Suborbital test
14	30 January 1959	23:53	PGM-17 Thor	Thor DM-18A	Suborbital test
15	27 March 1959	04:02	PGM-17 Thor	Thor DM-18A	Suborbital test
16	23 April 1959	05:30	PGM-17 Thor	Thor DM-18A	Suborbital test
17	12 May 1959	17:35	PGM-17 Thor	Thor DM-18A	Suborbital test
18	30 June 1959	02:37	PGM-17 Thor	Thor DM-18A	Suborbital test
19	21 July 1959	07:33	PGM-17 Thor	Thor DM-18A	Suborbital test		Pitch and roll programs failed to initiate, leading to RSO protocols 40 seconds after launch.
20	6 August 1959	02:48	PGM-17 Thor	Thor DM-18A	Suborbital test
21	27 August 1959	12:30	PGM-17 Thor	Thor DM-18A	Suborbital test
22	22 September 1959	18:00	PGM-17 Thor	Thor DM-18A	Suborbital test
23	14 October 1959	04:15	PGM-17 Thor	Thor DM-18A	Suborbital test
24	3 November 1959	Unknown	PGM-17 Thor	Thor DM-18A	Suborbital test
25	19 November 1959	Unknown	PGM-17 Thor	Thor DM-18A	Suborbital test
26	17 December 1959	Unknown	PGM-17 Thor	Thor DM-18A	Suborbital test
27	13 April 1960	12:02	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 1B		First successful launch of the Transit Satellite System. Maiden flight of the Thor-Ablestar and first orbital launch from LC-17B.
28	22 June 1960	05:54	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 2A and GRAB-1		Part of the Transit Satellite System.
29	18 August 1960	19:58	Thor-Ablestar	Thor DM-21 / Ablestar	Courier 1A		Experimental communications satellite. Launch suffered premature first stage cutoff, leading to RSO protocols 150 seconds after launch.
30	4 October 1960	17:50	Thor-Ablestar	Thor DM-21 / Ablestar	Courier 1B		Reflight of Courier 1 following 1A's failure. Became first active relay communications satellite.
31	30 November 1960	19:50	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 3A and GRAB-2		Part of the Transit Satellite System. Premature first stage cutoff lead to RSO protocols. Debris fell onto post-revolutionary Cuba, helping lead to polar launches being moved to Vandenberg Air Force Base in California.
32	22 February 1961	03:45	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 3B and Lofti 1		Part of the Transit Satellite System.
33	29 June 1961	04:22	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 4A and GRAB-3		Part of the Transit Satellite System.
34	15 November 1961	22:26	Thor-Ablestar	Thor DM-21 / Ablestar	Transit 4B and TRAAC		Part of the Transit Satellite System.
35	24 January 1961	09:30	Thor-Ablestar	Thor DM-21 / Ablestar	GRAB-4 and other payloads		Second stage suffered from limited thrust, leading to payloads failing to reach orbit.
36	10 May 1961	12:06	Thor-Ablestar	Thor DM-21 / Ablestar	ANNA 1A		Second stage failed to ignite, leading to payload failing to reach orbit.
37	10 July 1962	08:35	Thor-Delta	Thor DM-19 / Delta	Telstar 1		First ever telecommunications satellite, broadcasting television signals across the Atlantic Ocean. First Delta launch from LC-17B, and first commercial launch from Cape Canaveral.
38	2 October 1962	22:11	Delta A	Thor DM-21 / Delta-A	Explorer 14		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
39	27 October 1962	23:15	Delta A	Thor DM-21 / Delta-A	Explorer 15		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
40	14 February 1963	05:35	Delta B	Thor DM-21 / Delta-B	Syncom 1		Part of the Syncom series of experimental communication satellites. Launch was a success, but payload shortly failed.
41	7 May 1963	11:38	Delta B	Thor DM-21 / Delta-B	Telstar 2
42	19 June 1963	09:50	Delta B	Thor DM-21 / Delta-B	TIROS-7		Part of the TIROS series of weather satellites.
43	18 September 1963	09:39	Thor DSV-2	Thor DSV-2F	ASSET-1		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles.
44	27 November 1963	02:30	Delta C	Thor DSV-2A / Delta-D / Altair-2	Explorer 18		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
45	21 December 1963	09:30	Delta B	Thor DM-21 / Delta-B	TIROS-8		Part of the TIROS series of weather satellites.
46	21 January 1964	21:14	Delta B	Thor DM-21 / Delta-B	Relay 2
47	24 March 1964	12:15	Thor DSV-2	Thor DSV-2G	ASSET-2		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles. Second stage fired intermittently, leading to RSO protocols.
48	22 July 1964	15:39	Thor DSV-2	Thor DSV-2G	ASSET-3		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles.
49	29 October 1964	03:35	Thor DSV-2	Thor DSV-2F	ASSET-4		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles.
50	9 December 1964	02:00	Thor DSV-2	Thor DSV-2F	ASSET-5		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles.
51	3 February 1965	16:33	Delta C	Thor DSV-2A / Delta-D / Altair-2	OSO-2		Part of the Orbiting Solar Observatory series of heliophysics satellites.
52	23 February 1965	14:36	Thor DSV-2	Thor DSV-2G	ASSET-6		Suborbital flight. Part of the ASSET program, testing uncrewed atmospheric reentry vehicles.
53	29 May 1965	12:00	Delta C	Thor DSV-2A / Delta-D / Altair-2	Explorer 28		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
54	2 July 1965	04:04	Delta C	Thor DSV-2A / Delta-D / Altair-2	TIROS-10		Part of the TIROS series of weather satellites.
55	25 August 1965	15:17	Delta C	Thor DSV-2A / Delta-D / Altair-2	OSO-C		Part of the Orbiting Solar Observatory series of heliophysics satellites. Third stage ignited while still attached to second stage, leading to loss of vehicle.
56	28 February 1966	13:58	Delta E	Thor DSV-2C / Delta-E / Altair-2	ESSA-2		Part of the TOS series of weather satellites for the ESSA.
57	25 May 1966	14:00	Delta C1	Thor DSV-2A / Delta-D / FW-4D	Explorer 32		Part of the Explorer program, aiming to study earth's upper atmosphere.
58	26 October 1966	23:05	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Intelsat 2-1
59	11 January 1967	10:55	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Intelsat 2-2
60	23 March 1967	01:30	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Intelsat 2-3
61	19 July 1967	14:19	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Explorer 35		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
62	7 September 1967	22:04	Delta G	Thor DSV-2C / Delta-E	Biosatellite 2		Second of three launches of the Biosatellite program, studying how various lifeforms operate in space.
63	28 September 1967	00:45	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Intelsat 2-4
64	18 October 1967	16:04	Delta C	Thor DSV-2A / Delta-D / Altair-2	OSO-4		Part of the Orbiting Solar Observatory series of heliophysics satellites.
65	13 December 1967	14:08	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Pioneer 8		Part of the Pioneer program, aiming to study interplanetary space from great distance to Earth. Launched as Pioneer C. Third of five heliocentric orbit-centered Pioneer satellites.
66	8 November 1968	09:46	Delta E1	Thor DSV-2C / Delta-E / FW-4D	Pioneer 9		Part of the Pioneer program, aiming to study interplanetary space from great distance to Earth. Launched as Pioneer D. Fourth of five heliocentric orbit-centered Pioneer satellites.
67	5 December 1968	18:55	Delta E1	Thor DSV-2C / Delta-E / FW-4D	HEOS 1		First launch for the ESRO from LC-17.
68	22 January 1969	16:48	Delta C1	Thor DSV-2A / Delta-D / FW-4D	OSO-5		Part of the Orbiting Solar Observatory series of heliophysics satellites.
69	26 February 1969	07:47	Delta E1	Thor DSV-2C / Delta-E / FW-4D	ESSA-9		Part of the TOS series of weather satellites for the ESSA.

Later Delta I

All launches operated by NASA.

No.	Date	Time	Launch vehicle	Configuration	Payload	Result	Remarks
70	23 September 1972	13:20	Delta 1000	Thor-Delta 1604	Explorer 47		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity. First Delta launch from LC-17 using a numerical designation.
71	10 November 1972	01:14	Delta 1000	Thor-Delta 1914	Anik-A1
72	20 April 1973	23:47	Delta 1000	Thor-Delta 1914	Anik-A2
73	10 June 1973	14:13	Delta 1000	Thor-Delta 1913	Explorer 49		Part of the Explorer program, aiming to conduct radio astronomy. First Delta launch going to another celestial body, as payload traveled to lunar orbit to minimize radio interference from Earth.
74	26 October 1973	02:26	Delta 1000	Thor-Delta 1604	Explorer 50		Part of the Explorer program, aiming to study cosmic rays and other electromagnetic activity.
75	19 January 1974	01:38	Delta 2000	Thor-Delta 2313	Skynet-2A		Loose piece of insulation damaged onboard electronics during launch, leading to loss of control.
76	13 April 1974	21:33	Delta 2000	Thor-Delta 2914	Westar-1
77	17 May 1974	10:31	Delta 2000	Thor-Delta 2914	SMS-1		Experimental weather satellite designed to demonstrate feasibility at geosynchronous orbit.
78	10 October 1974	22:53	Delta 2000	Thor-Delta 2914	Westar-2
79	23 November 1974	00:28	Delta 2000	Thor-Delta 2313	Skynet-2B
80	19 December 1974	02:39	Delta 2000	Thor-Delta 2914	Symphonie-1
81	6 February 1975	22:02	Delta 2000	Thor-Delta 2914	SMS-2		Experimental weather satellite designed to demonstrate feasibility at geosynchronous orbit.
82	7 May 1975	23:35	Delta 2000	Thor-Delta 2914	Anik-A3
83	21 June 1975	11:43	Delta 1000	Thor-Delta 1910	OSO-8		Part of the Orbiting Solar Observatory series of heliophysics satellites.
84	16 October 1975	22:40	Delta 2000	Thor-Delta 2914	GOES-1		Launched as GOES-A. First launch of the Geostationary Operational Environmental Satellites system of satellites.
85	20 November 1975	02:06	Delta 2000	Thor-Delta 2910	Explorer 55		Part of the Explorer program, aiming to study earth's upper atmosphere and ionosphere.
86	17 January 1976	23:28	Delta 2000	Thor-Delta 2914	CTS 1 Hermes
87	22 April 1976	20:46	Delta 2000	Thor-Delta 2914	NATO 3A
88	20 April 1977	10:15	Delta 2000	Thor-Delta 2914	ESA-GEOS-1		Third stage separated prematurely, leading to failure of spin stabilization.
89	16 June 1977	10:51	Delta 2000	Thor-Delta 2914	GOES-2		Launched as GOES-B. Part of the Geostationary Operational Environmental Satellites system of satellites.
90	14 July 1977	14:56	Delta 2000	Thor-Delta 2914	GMS-1
91	22 October 1977	13:53	Delta 2000	Thor-Delta 2914	ISEE-1 and ISEE-2		Part of the Explorer program, aiming to study the interplanetary magnetic field. First two of three satellites of the International Sun-Earth Explorer program between NASA and ESA.
92	15 December 1977	00:47	Delta 2000	Thor-Delta 2914	CS-1
93	7 April 1978	22:01	Delta 2000	Thor-Delta 2914	BSE-1
94	16 June 1978	10:49	Delta 2000	Thor-Delta 2914	GOES-3		Launched as GOES-C. Part of the Geostationary Operational Environmental Satellites system of satellites.
95	12 August 1978	15:12	Delta 2000	Thor-Delta 2914	International Cometary Explorer		Launched as ICEE-3. Part of the Explorer program, aiming to study the interplanetary magnetic field before studying comets like 1P/Halley and 21P/Giacobini–Zinner. First ever satellite to visit a Lagrange point. Third of three satellites of the International Sun-Earth Explorer program between NASA and ESA.
96	19 November 1978	00:46	Delta 2000	Thor-Delta 2914	NATO 3C
97	30 January 1979	21:42	Delta 2000	Thor-Delta 2914	SCATHA (P78-2)
98	26 August 1982	23:10	Delta 3000	Thor-Delta 3920	Anik D1
99	28 October 1982	01:27	Delta 3000	Thor-Delta 3924	Satcom 5
100	11 April 1983	22:39	Delta 3000	Thor-Delta 3924	Satcom 6
101	28 June 1983	23:08	Delta 3000	Thor-Delta 3920	Galaxy 1
102	8 September 1983	22:52	Delta 3000	Thor-Delta 3920	Satcom 7
103	21 September 1984	22:18	Delta 3000	Thor-Delta 3920	Galaxy-3
104	5 September 1986	15:08	Delta 3000	Thor-Delta 3920	USA-19		Experimental in-orbit ASAT satellite for the SDI.
105	20 March 1987	22:22	Delta 3000	Thor-Delta 3920	Palapa B2P
106	8 February 1988	22:07	Delta 3000	Thor-Delta 3910	USA-30		Experimental in-orbit ASAT satellite for the SDI.
107	24 March 1989	21:50	Delta 3000	Thor-Delta 3920-8	USA-36		Experimental in-orbit ASAT satellite for the SDI.

Delta 4000, II, and III

Delta 4000 launches operated by NASA. Delta II launches before August 1997 operated by McDonnell Douglas. Launches between then and 2007 operated by Boeing. Launches since 2007 operated by United Launch Alliance.

No.	Date	Time	Launch vehicle	Configuration	Payload	Result	Remarks
108	27 August 1989	22:59	Delta 4000	Thor-Delta 4925-8	BSB-R1
109	11 December 1989	18:10	Delta II	Thor-Delta 6925	USA-49		Part of the Global Positioning System. First Delta II launch from LC-17B.
110	14 February 1990	16:15	Delta II	Thor-Delta 6920-8	USA-51 and USA-52
111	13 April 1990	22:28	Delta II	Thor-Delta 6925-8	Palapa B2R
112	12 June 1990	05:52	Delta 4000	Thor-Delta 4925-8	INSAT 1D		Final flight of the Delta I.
113	18 August 1990	00:42	Delta II	Thor-Delta 6925	Thor 1
114	30 October 1990	23:16	Delta II	Thor-Delta 6925	Inmarsat-2 F1
115	8 January 1991	00:53	Delta II	Thor-Delta 7925	NATO 4A
116	8 March 1991	23:03	Delta II	Thor-Delta 6925	Inmarsat-2 F2
117	13 April 1991	00:09	Delta II	Thor-Delta 7925	ASC-2
118	29 May 1991	22:55	Delta II	Thor-Delta 7925	Aurora 2
119	23 February 1992	22:29	Delta II	Thor-Delta 7925-9.5	USA-79		Part of the Global Positioning System.
120	10 April 1992	03:20	Delta II	Thor-Delta 7925-9.5	USA-80		Part of the Global Positioning System.
121	14 May 1992	00:40	Delta II	Thor-Delta 7925	Palapa B4
122	7 July 1992	09:20	Delta II	Thor-Delta 7925-9.5	USA-83		Part of the Global Positioning System.
123	31 August 1992	10:41	Delta II	Thor-Delta 7925	Satcom C4
124	12 October 1992	09:47	Delta II	Thor-Delta 7925	DFS Kopernikus-3
125	18 December 1992	22:16	Delta II	Thor-Delta 7925-9.5	USA-87		Part of the Global Positioning System.
126	30 August 1993	12:38	Delta II	Thor-Delta 7925	USA-94		Part of the Global Positioning System.
127	26 October 1993	17:04	Delta II	Thor-Delta 7925	USA-96		Part of the Global Positioning System.
128	19 February 1994	23:45	Delta II	Thor-Delta 7925-8	Galaxy 1R
129	1 November 1994	09:31	Delta II	Thor-Delta 7925-10	Wind		Part of the International Solar-Terrestrial Physics Science Initiative, a heliophysics spacecraft designed to study the solar wind from the L₁ Lagrange point. First Delta II launch into a heliocentric orbit.
130	5 August 1995	11:10	Delta II	Thor-Delta 7925-9.5	Koreasat 1		One solid rocket booster failed to separate, slowing vehicle and limiting orbital velocity. Spacecraft eventually entered correct orbit at the expense of a substantially reduced operational life.
131	14 January 1996	11:10	Delta II	Thor-Delta 7925	Koreasat-2
132	17 February 1996	20:43	Delta II	Thor-Delta 7925-8	NEAR Shoemaker		First mission in the Discovery Program, aimed at exploring 433 Eros. First spacecraft to enter orbit of and land on an asteroid. First Delta II launch to another celestial body.
133	28 March 1996	00:21	Delta II	Thor-Delta 7925	USA-117		Part of the Global Positioning System.
134	24 May 1996	01:10	Delta II	Thor-Delta 7925	Galaxy 9
135	4 December 1996	06:58	Delta II	Thor-Delta 7925	Mars Pathfinder		Part of the Discovery Program, aimed at exploring Mars and developing a spacecraft under administrator Daniel Goldin's "faster, better, cheaper" approach. First Mars landing mission since Viking 2 in 1975. Flew with Sojourner, the first operational Mars rover.
136	10 January 1998	00:32	Delta II	Thor-Delta 7925-9.5	Skynet 4D
137	27 August 1998	01:17	Delta III	Thor-Delta 8930	Galaxy 10		Maiden flight of the Delta III. Control problems and depletion of hydraulic fluid being used led to range safety protocols being activated during ascent.
138	22 November 1998	23:54	Delta II	Thor-Delta 7925-9.5	BONUM-1
139	3 January 1999	20:21	Delta II	Thor-Delta 7425	Mars Polar Lander		Part of the Mars Exploration Program, designed to explore the titular planet and the soil and climate of its polar regions. Launch was a success, but lander crashed on the surface during entry, descent and landing.
140	5 May 1999	01:00	Delta III	Thor-Delta 8930	Orion 3		Delta III second stage suffered engine failure, stranding payload in low Earth orbit.
141	10 June 1999	13:48	Delta II	Thor-Delta 7420-10C	Globalstar-3
142	10 July 1999	08:45	Delta II	Thor-Delta 7420-10C	Globalstar-4
143	17 August 1999	04:37	Delta II	Thor-Delta 7420-10C	Globalstar-6
144	8 February 2000	21:24	Delta II	Thor-Delta 7420-10C	Globalstar-7
145	23 August 2000	11:05	Delta III	Thor-Delta 8930	DM-F3		Demonstration satellite. Payload was placed in lower than expected orbit. Final flight of the Delta III.
146	18 May 2001	17:45	Delta II	Thor-Delta 7925-9.5	NROL-17		NRO launch. Technology demonstration satellite, also known as GeoLITE or USA-158. Was used as a test bed for laser and UHF communication.
147	30 June 2001	19:46	Delta II	Thor-Delta 7425-10	Wilkinson Microwave Anisotropy Probe		Part of the Explorer program, a space telescope designed to create a survey of the cosmic microwave background radiation. First space telescope to be placed into a heliocentric orbit.
148	29 January 2003	18:06	Delta II	Thor-Delta 7925-9.5	USA-166		Part of the Global Positioning System.
149	8 July 2003	03:18	Delta II	Thor-Delta 7925H-9.5	Mars Exploration Rover-B Opportunity		Second of two launches of the Mars Exploration Rover mission, two rovers designed to explore the titular planet's surface for extended periods of time. Maiden flight of the Delta II Heavy.
150	25 August 2003	05:35	Delta II	Thor-Delta 7920H-9.5	Spitzer Space Telescope		Part of the Great Observatories program, a space telescope designed to conduct infrared astronomy.
151	20 March 2004	17:53	Delta II	Thor-Delta 7925-9.5	USA-177		Part of the Global Positioning System.
152	23 June 2004	22:54	Delta II	Thor-Delta 7925-9.5	USA-178		Part of the Global Positioning System.
153	3 August 2004	06:15	Delta II	Thor-Delta 7925H-9.5	MESSENGER		Part of the Discovery Program, aimed at exploring Mercury such as mapping areas not covered by Mariner 10. First spacecraft to enter orbit of Mercury.
154	6 November 2004	05:39	Delta II	Thor-Delta 7925-9.5	USA-180		Part of the Global Positioning System.
155	12 January 2005	18:47	Delta II	Thor-Delta 7925-9.5	Deep Impact		Part of the Discovery Program, aimed at studying the interior of comets via impacting one. First impactor of a celestial body besides the Moon, done with 9P/Tempel.
156	26 October 2006	00:52	Delta II	Thor-Delta 7925-10L	STEREO		Part of the Solar Terrestrial Probes program, two spacecraft designed to observed the Sun and phenomena such as coronal mass ejections.
157	17 February 2007	23:01	Delta II	Thor-Delta 7925-10C	THEMIS		Part of the Explorer program, five spacecraft designed to study Earth's magnetic field.
158	27 September 2007	11:34	Delta II	Thor-Delta 7925H-9.5	Dawn		Part of the Discovery Program, designed to explore large asteroid belt objects like Ceres and Vesta. First spacecraft to enter orbit of two separate celestial objects, and first spacecraft to visit and enter orbit of a dwarf planet.
159	11 June 2008	16:05	Delta II	Thor-Delta 7920H-10C	Fermi Gamma-ray Space Telescope		Space telescope designed to conduct gamma-ray astronomy. Collaboration between NASA, the DoE, and several international agencies.
160	7 March 2009	03:49	Delta II	Thor-Delta 7925-10L	Kepler Space Telescope		Part of the Discovery Program, a space telescope designed to survey a small area of the sky to detect exoplanets through the transit method. Final Delta II flight to go into heliocentric orbit.
161	25 September 2009	12:20	Delta II	Thor-Delta 7920-10C	USA-208 and USA-209		Final military launch from a Delta II.
162	10 September 2011	13:08	Delta II	Thor-Delta 7920H-10C	GRAIL		Part of the Discovery Program, two spacecraft designed to create a gravity map and study the composition of the Moon. Final flight of the Delta II Heavy and last Delta II launch beyond low Earth orbit. Final launch of a Thor-based rocket from Cape Canaveral. Most recent launch from SLC-17.