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USA-184

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USA-184
Start of mission

Mission type	ELINT
Operator	National Reconnaissance Office
COSPAR ID	2006-027A
SATCAT no.	29249


Launch date	28 June 2006, 03:33 (2006-06-28UTC03:33Z) UTC
Rocket	Delta IV-M+(4,2) D317
Launch site	Vandenberg, SLC-6


Orbital parameters
Reference system	Geocentric
Regime	Molniya
Perigee altitude	1,138 kilometres (707 mi)^[1]
Apogee altitude	39,210 kilometres (24,360 mi)^[1]
Inclination	63.2°^[1]

USA-184, also known as NRO Launch 22orNROL-22, is an American signals intelligence satellite, operated by the National Reconnaissance Office. Launched in 2006, it has been identified as the first in a new series of satellites which are replacing the earlier Trumpet spacecraft.^[2]

Satellite[edit]

USA-184 was launched by Boeing, using a Delta IV carrier rocket flying in the Medium+(4,2) configuration. The rocket was the first Delta IV to launch from Vandenberg Air Force Base, flying from Space Launch Complex 6,^[3] a launch pad originally constructed as part of abandoned plans for crewed launches from Vandenberg, originally using Titan rockets, and later Space Shuttles.^[4] The launch also marked the first launch of an Evolved Expendable Launch Vehicle from Vandenberg, and the first launch of an NRO payload on an EELV.

Liftoff took place at 03:33 UTC on 28 June 2006 (20:33 PDT on 27 June).^[5] The mission was identified as NRO Launch 22,^[6] and was the sixth flight of an Delta IV, with the flight number Delta 317, or D317.^[7]

The satellite's orbit and mission are officially classified, however like most classified spacecraft it has been located and tracked by amateur observers. It is in a Molniya orbit with a perigee of 1,138 kilometres (707 mi), an apogee of 39,210 kilometres (24,360 mi), and 63.2° of inclination.^[1] In addition to its SIGINT payload, USA-184 also carries two secondary instruments; the SBIRS-HEO-1 missile detection payload as part of the Space-Based Infrared System programme, and NASA's TWINS-1 or TWINS-A magnetospheric science instrument as part of the TWINS programme.^[2]

References[edit]

^ ^a ^b ^c ^d McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 11 April 2012.

^ ^a ^b Krebs, Gunter. ""Trumpet F/O" 1, 2, 3". Gunter's Space Page. Retrieved 11 April 2012.

^ Ray, Justin (27 June 2006). "New era of rocket launches begins at California base". Spaceflight Now. Retrieved 11 April 2012.

^ Bergin, Chris (27 June 2006). "Delta IV – NROL-22 launch success". NASASpaceflight.com. Retrieved 11 April 2012.

^ Ray, Justin (28 June 2006). "Delta Launch Report - Mission Status Center". Spaceflight Now. Retrieved 11 April 2012.

^ Krebs, Gunter. "NROL launches". Gunter's Space Page. Retrieved 11 April 2012.

^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 11 April 2012.

v t e ← 2005 Orbital launches in 2006 2007 →
January	New Horizons Daichi
February	EchoStar X MTSAT-2 Akari, CUTE-1.7 + APD Arabsat-4A
March	Spainsat, Hot Bird 7A ST-5 FalconSAT-2 Soyuz TMA-8
April	JCSAT-5A COSMIC Astra 1KR Progress M-56 EROS-B Yaogan 1 CALIPSO, CloudSat
May	Kosmos 2420 GOES 13 / EWS-G1 Satmex 6, Thaicom 5
June	Resurs-DK No.1 KazSat-1 Galaxy 16 USA-187, USA-188, USA-189 Progress M-57 Kosmos 2421 USA-184
July	STS-121 (MPLM) INSAT-4C Genesis I Kosmos 2422 BelKA, Baumanets, PicPot, SACRED, ION, Rincon 1, ICECube-1, KUTESat Pathfinder, SEEDS, nCube, HAUSAT-1, MEROPE, CP-2, AeroCube-1, CP-1, Mea Huaka'i, ICECube-2 Arirang-2
August	Hot Bird 8 JCSAT-3A, Syracuse 3B Koreasat 5
September	Shijian 8 STS-115 (ITS P3/4) IGS-3A Chinasat-22A Kosmos 2423 Soyuz TMA-9 Hinode, HIT-SAT, SSSAT USA-190
October	DirecTV-9S, Optus D1, LDREX MetOp-A Progress M-58 Shijian 6C, Shijian 6D STEREO Sinosat-2 XM-4
November	USA-191 Badr-4 USA-192
December	Fengyun 2-05 WildBlue 1, AMC-18 STS-116 (ITS P5, SpaceHab LSM, ANDE-MAA, ANDE-FACL, RAFT1, MARScom, MEPSI-2) MEASAT-3 USA-193 TacSat-2, GeneSat Kiku 8 SAR-Lupe 1 Meridian 1 Kosmos 2424, Kosmos 2425, Kosmos 2426 CoRoT
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).

National Reconnaissance Office satellite launches

L-1
L-2
L-3
L-4
L-5
L-6
L-7
L-8
L-9
L-10
L-11
L-12
L-13
L-14
L-15
L-16
L-17
L-18
L-19
L-20
L-21
L-22
L-23
L-24
L-25
L-26
L-27
L-28
L-29
L-30
L-31
L-32
L-33
L-34
L-35
L-36
L-37
L-38
L-39
L-40
L-41
L-42
...
L-45
L-47
L-49
L-55
L-61
L-65
L-66
L-67
L-79

v t e Jumpseat and Trumpet satellites
Jumpseat	OPS 4788 OPS 1844 OPS 7724 OPS 2439 OPS 6031 OPS 7225 OPS 7304
Trumpet	USA-103 USA-112 USA-136
"Improved Trumpet"	USA-184 USA-200
Fourth Generation	NROL-35
TWINS SBIRS-HEO

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