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HandWiki. List of Delta 4 Launches. Encyclopedia. Available online: https://encyclopedia.pub/entry/28769 (accessed on 05 December 2025).
HandWiki. List of Delta 4 Launches. Encyclopedia. Available at: https://encyclopedia.pub/entry/28769. Accessed December 05, 2025.
HandWiki. "List of Delta 4 Launches" Encyclopedia, https://encyclopedia.pub/entry/28769 (accessed December 05, 2025).
HandWiki. (2022, October 11). List of Delta 4 Launches. In Encyclopedia. https://encyclopedia.pub/entry/28769
HandWiki. "List of Delta 4 Launches." Encyclopedia. Web. 11 October, 2022.
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Delta IV is a group of five expendable launch systems in the Delta rocket family introduced in the early 2000s. Originally designed by Boeing's Defense, Space and Security division for the Evolved Expendable Launch Vehicle (EELV) program, the Delta IV became a United Launch Alliance (ULA) product in 2006. The Delta IV is primarily a launch vehicle for United States Air Force (USAF) military payloads, but has also been used to launch a number of United States government non-military payloads and a single commercial satellite. The Delta IV originally had two main versions which allowed the family to cover a range of payload sizes and masses: the retired Medium (which had four configurations) and Heavy. As of 2019, only the Heavy remains active, with payloads that would previously fly on Medium moving to either the existing Atlas V or the forthcoming Vulcan. Retirement of the Delta IV is anticipated in 2023. Delta IV vehicles are built in the ULA facility in Decatur, Alabama. Final assembly is completed at the launch site by ULA: at the horizontal integration facility for launches from SLC-37B pad at Cape Canaveral Air Force Station and in a similar facility for launches from SLC-6 pad at Vandenberg Air Force Base .
horizontal integration
canaveral
slc-6
1. Launch Statistics
Launch Outcome
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Launch Station
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Rocket
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2. Launch History
| Flight | Date / time (UTC) | Launch site | Payload[5] | Rocket | Launch outcome[5] |
|---|---|---|---|---|---|
| 1 | 20 November 2002 | Cape Canaveral, SLC-37B | Eutelsat W5 | Delta IV Medium | Success[6] |
| 2 | 11 March 2003 | Cape Canaveral, SLC-37B | USA-167 (DSCS-3 A3) | Delta IV Medium | Success[7] |
| 3 | 29 August 2003 | Cape Canaveral, SLC-37B | USA-170 (DSCS-3 B6) | Delta IV Medium | Success[8] |
| 4 | 21 December 2004 | Cape Canaveral, SLC-37B | DemoSat, Sparkie / 3CS-1 and Ralphie / 3CS-2 | Delta IV Heavy | Partial failure[lower-alpha 1] |
| 5 | 24 May 2006 | Cape Canaveral, SLC-37B | GOES-N (GOES-13) | Delta IV Medium | Success[9] |
| 6 | 28 June 2006 | VAFB SLC-6 | NROL-22 | Delta IV Medium | Success[10] |
| 7 | 4 November 2006 | VAFB SLC-6 | DMSP F17 | Delta IV Medium | Success[11] |
| 8 | 11 November 2007 | Cape Canaveral, SLC-37B | DSP-23 Defense Support Program | Delta IV Heavy | Success |
| 9 | 18 January 2009 | Cape Canaveral, SLC-37B | Orion 6 / Mentor 4 (USA-202 / NROL-26) | Delta IV Heavy | Success |
| 10 | 27 June 2009 | Cape Canaveral, SLC-37B | GOES-O (GOES-14) | Delta IV Medium | Success[12] |
| 11 | 6 December 2009 | Cape Canaveral, SLC-37B | USA-211 (WGS-3) | Delta IV Medium | Success[13] |
| 12 | 4 March 2010 | Cape Canaveral, SLC-37B | GOES-P (GOES-15) | Delta IV Medium | Success[14] |
| 13 | 28 May 2010 | Cape Canaveral, SLC-37B | USA-213 (GPS IIF SV-1) | Delta IV Medium | Success[15] |
| 14 | 21 November 2010 | Cape Canaveral, SLC-37B | Orion 7 / Mentor 5 (USA-223 / NROL-32) | Delta IV Heavy | Success |
| 15 | 20 January 2011 | Vandenberg Air Force Base , SLC-6 | KH-11 Kennen 15 (USA-224 / NROL-49) | Delta IV Heavy | Success |
| 16 | 11 March 2011 | Cape Canaveral, SLC-37B | USA-227 (NROL-27) | Delta IV Medium | Success |
| 17 | 16 July 2011 | Cape Canaveral, SLC-37B | USA-232 (GPS IIF-2) | Delta IV Medium | Success[16] |
| 18 | 20 January 2012 | Cape Canaveral, SLC-37B | USA-233 (WGS-4) | Delta IV Medium | Success[17] |
| 19 | 3 April 2012 | VAFB SLC-6 | USA-234 (NROL-25) | Delta IV Medium | Success[18] |
| 20 | 29 June 2012 | Cape Canaveral, SLC-37B | Orion 8 / Mentor 6 (USA-237 / NROL-15) | Delta IV Heavy | Success |
| 21 | 4 October 2012 | Cape Canaveral, SLC-37B | USA-239 (GPS IIF-3) | Delta IV Medium | Success[19] |
| 22 | 25 May 2013 | Cape Canaveral, SLC-37B | USA-243 (WGS-5) | Delta IV Medium | Success[20] |
| 23 | 8 August 2013 | Cape Canaveral, SLC-37B | USA-244 (WGS-6) | Delta IV Medium | Success[21] |
| 24 | 26 August 2013 | Vandenberg Air Force Base , SLC-6 | KH-11 Kennen 16 (USA-245 / NROL-65) | Delta IV Heavy | Success |
| 25 | 21 February 2014 | Cape Canaveral, SLC-37B | USA-248 (GPS IIF-5) | Delta IV Medium | Success[22] |
| 26 | 17 May 2014 | Cape Canaveral, SLC-37B | USA-251 (GPS IIF-6) | Delta IV Medium | Success[23] |
| 27 | 28 July 2014 | Cape Canaveral, SLC-37B | USA 253-255 (AFSPC-4 (GSSAP #1/#2/ANGELS)) | Delta IV Medium | Success[24] |
| 28 | 5 December 2014 | Cape Canaveral, SLC-37B | Orion Exploration Flight Test-1 (EFT-1) | Delta IV Heavy | Success |
| 29 | 25 March 2015 | Cape Canaveral, SLC-37B | USA-260 (GPS IIF-9) | Delta IV Medium | Success[25] |
| 30 | 24 July 2015 | Cape Canaveral, SLC-37B | USA-263 (WGS-7) | Delta IV Medium | Success[26] |
| 31 | 10 February 2016 | VAFB SLC-6 | USA-267 (NROL-45) | Delta IV Medium | Success[27] |
| 32 | 11 June 2016 | Cape Canaveral, SLC-37B | Orion 9 / Mentor 7 (USA-268 / NROL-37) | Delta IV Heavy | Success |
| 33 | 19 August 2016 | Cape Canaveral, SLC-37B | USA-270/271 (AFSPC-6 (GSSAP #3/#4)) | Delta IV Medium | Success[28] |
| 34 | 7 December 2016 | Cape Canaveral, SLC-37B | USA-272 (WGS-8) | Delta IV Medium | Success[29] |
| 35 | 19 March 2017 | Cape Canaveral, SLC-37B | USA-275 (WGS-9) | Delta IV Medium | Success[30] |
| 36 | 12 January 2018 | VAFB SLC-6 | USA-281 (NROL-47) | Delta IV Heavy | Success[31] |
| 37 | 12 August 2018 | Cape Canaveral, SLC-37B | Parker Solar Probe[lower-alpha 2] | Delta IV Medium | Success |
| 38 | 19 January 2019 | Vandenberg Air Force Base , SLC-6 | NROL-71 | Delta IV Heavy | Success |
| 39 | 16 March 2019 | Cape Canaveral, SLC-37B | USA-291 (WGS-10) | Delta IV Medium | Success[32] |
| 40 | 22 August 2019 | Cape Canaveral, SLC-37B | USA-293 (GPS III-2) | Delta IV Medium | Success[33] |
| 41 | 11 December 2020 | Cape Canaveral, SLC-37B | Orion 10 / Mentor 8 (USA-268/ NROL-44)[34][35] | Delta IV Heavy | Success |
| 42 | 26 April 2021 | Vandenberg Air Force Base , SLC-6 | KH-11 Kennen 17 (NROL-82) | Delta IV Heavy | Success |
3. Upcoming Launches
The following missions have been announced by the National Reconnaissance Office.[36] For the final five missions (12-16) including contract modifications, ULA has been awarded $2.2 billion, or $440 million per launch.[37] This can be compared with the Falcon Heavy launch price of $90 million to $150 million. As of July 2021, these are the final missions:[38]
| Date (UTC) | Payload | Client | Launch site |
|---|---|---|---|
| 2022 (14th mission) | NROL-91 | NRO | Vandenberg Air Force Base , SLC-6 |
| 2023 (15th mission) | NROL-68 | NRO | Cape Canaveral Air Force Station , SLC-37B |
| 2024 (16th mission) | NROL-70 | NRO | Cape Canaveral Air Force Station , SLC-37B |
4. Notes
- ↑ CBCs underperformed, lower orbit than planned
- ↑ Star 48BV upper stage
Information
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Engineering, Aerospace
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