Since November 2002, rockets from the Delta IV Medium family have been launched 29 times, all of which were successful. Its last flight was with a 3rd generation GPS satellite in August 2019.

Delta IV Medium configurations The Delta IV Medium (also referred to as 'single stick') was available in four configurations: Medium, Medium+ (4,2), Medium+ (5,2), and Medium+ (5,4).

Delta IV Medium, coded Delta 9040, was the most basic Delta IV. It featured a single CBC and a modified Delta 3 second stage, with 4-meter liquid hydrogen and liquid oxygen tanks (called a Delta Cryogenic Second Stage (DCSS)) and a 4-meter payload fairing. The Delta IV Medium was capable of launching 4,200 kg to geostationary transfer orbit (GTO). From Cape Canaveral, GTO is 1804 m/s away from GEO. The mass of fairing and payload attach fittings have been subtracted from the gross performance.

Delta IV Medium+ (4,2), coded Delta 9240, had the same CBC and DCSS as the Medium, but with the addition of two Orbital ATK-built 1.5-m (60-in) diameter solid rocket booster Graphite-Epoxy Motors (GEM-60s) strap-on boosters to increase payload capacity to 6,150 kg to GTO.

Delta IV Medium+ (5,2), coded Delta 9250, was similar to the Medium+ (4,2), but had a 5-m–diameter DCSS and payload fairing for larger payloads. Because of the extra weight of the larger payload fairing and second stage, the Medium+ (5,2) could launch 5,072 kg to GTO.

Delta IV Medium+ (5,4), coded Delta 9450, was similar to the Medium+ (5,2), but used four GEM-60s instead of two, enabling it to lift 6,882 kg to GTO.

To encapsulate the satellite payload, a variety of different payload fairings were available. A stretched Delta III 4-meter diameter composite payload fairing was used on 4-meter Medium versions, while an enlarged, 5-meter diameter composite fairing was used on 5-meter Medium versions.

The Medium (4,2) version last flew on 22 August 2019, marking the retirement of the Delta IV Medium variants.

Launch Statistics Rocket configurations

Launch outcomes

Launch sites

Orbits

Customers

Launch history + Flight Date / time (UTC) Rocket Configuration Launch site Payload Payload mass Orbit Customer Launch outcome1 November 20, 200222:39 Delta IV Medium+ (4,2) CCAFS SLC-37B Eutelsat W5 3,086 pounds (1,400 kilograms) GTO Eutelsat First Delta IV launch, Commercial communications satellite2 March 11, 200300:59 Delta IV Medium CCAFS SLC-37B USA-167 (DSCS-3 A3) GTO US Air Force Military communications satellite, First Delta IV Medium launch, First USAF EELV mission3 August 29, 200323:13 Delta IV Medium CCAFS SLC-37B USA-170 (DSCS-3 B6) GTO US Air Force Military communications satellite4 May 24, 200622:11 Delta IV Medium+ (4,2) CCAFS SLC-37B GOES-N (GOES-13) 6,908 pounds (3,133 kilograms) GTO NASA/NOAA First Delta IV launch for NASA, Weather satellite5 June 28, 200603:33 Delta IV Medium+ (4,2) VAFB SLC-6 NROL-22 Molniya US NRO First Delta IV launch from Vandenberg, Reconnaissance satellite6 November 4, 200613:53 Delta IV Medium VAFB SLC-6 DMSP F17 SSO DoD First Delta IV launch into a LEO/SSO, Military weather satellite7 June 27, 200922:51 Delta IV Medium+ (4,2) CCAFS SLC-37B GOES-O (GOES-14)6,908 pounds (3,133 kilograms) GTO NASA/NOAA Weather satellite8 December 6, 200901:47 Delta IV Medium+ (5,4) CCAFS SLC-37B USA-211 (WGS-3) 13,199 pounds (5,987 kilograms) GTO US Air Force First Delta IV Medium+ (5,4) launch, Communication satellite 9 4 March 201023:57 CCAFS GOES-P (GOES-15) 7,139 pounds (3,238 kilograms) GTO NASA NOAA Weather satellite in the Geostationary Operational Environmental Satellite (GOES) program. Replaced GOES-11 as the GOES West satellite. 1028 May 201003:00Delta IV Medium+ (4,2)CCAFS SLC-37BUSA-213 (GPS IIF SV-1)3,594 pounds (1,630 kilograms)MEOUS Air Force Navigation satellite1111 March 201123:38 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-227 (NROL-27) 5,148 pounds (2335 kilograms) GTOUS NRO Military comsat.12 16 July 201106:41 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-232 (GPS IIF-2)3,594 pounds (1,630 kilograms) MEO US Air Force Navigation satellite1320 January 2012 00:38Delta IV Medium+ (5,4)CCAFS SLC-37BUSA-233 (WGS-4)13,199 pounds (5,987 kilograms)GTOUS Air Force Military comsat14 3 April 201223:12 Delta IV Medium+ (5,2) VAFB SLC-6 USA-234 (NROL-25) LEO US NRO First Delta IV Medium+ (5,2) launch, Reconnaissance satellite15 4 October 201212:10 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-239 (GPS IIF-3)3,594 pounds (1,630 kilograms) MEO US Air Force Upper stage anomaly, Satellite navigation16 25 May 201300:27 Delta IV Medium+ (5,4) CCAFS SLC-37B USA-243 (WGS-5) 13,199 pounds (5,987 kilograms) GTO US Air Force Military comsat17 8 August 201300:29 Delta IV Medium+ (5,4) CCAFS, SLC-37B USA-244 (WGS-6) 13,199 pounds (5,987 kilograms) GTO US Air Force Military comsat18 21 February 201401:59 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-248 (GPS IIF-5)3,594 pounds (1,630 kilograms) MEO US Air Force 25th Delta IV launch, Satellite navigation19 17 May 201400:03 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-251 (GPS IIF-6)3,594 pounds (1,630 kilograms) MEO US Air Force Navigation satellite20 28 July 201423:28 Delta IV Medium+ (4,2) CCAFS SLC-37B USA 253-255 (AFSPC-4 (GSSAP #1/#2/ANGELS)) GEO DoD/AFRL Space surveillance Technology demonstration21 25 March 201518:36 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-260 (GPS IIF-9)3,594 pounds (1,630 kilograms) MEO US Air Force Final launch of baseline RS-68 engine, Navigation satellite22 24 July 201500:07 Delta IV Medium+ (5,4) CCAFS SLC-37B USA-263 (WGS-7) 13,199 pounds (5,987 kilograms) GTO DoD Second flight with an RS-68A engine; New standard for Delta IV rockets, Military comsat23 10 February 2016, 11:40 Delta IV Medium+ (5,2) VAFB SLC-6 USA-267 (NROL-45) LEO US NRO Reconnaissance satellite24 19 August 201604:52 Delta IV Medium+ (4,2) CCAFS SLC-37B USA-270/271 (AFSPC-6 (GSSAP #3/#4)) GEO DoD Space surveillance satellite257 December 2016 23:53Delta IV Medium+ (5,4)CCAFS SLC-37BUSA-272 (WGS-8)13,199 pounds (5,987 kilograms)GTODoD Military comsat26 19 March 201700:18 Delta IV Medium+ (5,4) CCAFS SLC-37B USA-275 (WGS-9) 13,199 pounds (5,987 kilograms) GTO DoD Military comsat27 12 January 201822:11 Delta IV Medium+ (5,2) VAFB SLC-6 USA-281 (NROL-47) LEO US NRO Final flight of Delta IV M+(5,2) variant. Reconnaissance satellite.28 16 March 201900:26 Delta IV Medium+ (5,4) CCAFS, SLC-37B USA-291 (WGS-10) 13,199 pounds (5,987 kilograms) GTO DoD Final flight of Delta IV M+(5,4) variant. Military comsat.29 22 August 201913:06 Delta IV Medium+ (4,2) CCAFS, SLC-37B USA-293 (GPS III-2) 8,168 pounds (3,705 kilograms) MEO US Air Force Final flight of Delta IV M+(4,2) variant. 3rd generation Global Positioning Satellite (GPS)

See also

List of Delta IV launches List of Delta IV Heavy launches List of Thor and Delta launches List of Thor and Delta launches (2000-2009) List of Thor and Delta launches (2010-2019) Delta (rocket family) Delta IV Medium Delta IV Heavy Delta IV

References