This is a list of NRO Launch (NROL) designations for satellites operated by the United States National Reconnaissance Office. Those missions are generally classified, so that their exact purposes and orbital elements are not published. However, amateur astronomers have managed to observe most of the satellites, and leaked information has led to the identification of many of the payloads.

Launch statistics

Launch vehicle families

Launch sites

Launch history

Launch designation	Payload nickname	Satellite designation	Date/time, UTC	Launch site	Rocket	Orbit	Project	Function	Status	Patch	Remarks
L-1	Nemesis[1]	USA-179	31 August 2004 23:17[2]	CCAFS, SLC-36A[2]	Atlas IIAS	39,053 × 1,316 km × 63.7° (Molniya)[3]	Quasar 15[4]	Communications	Entered service, status unknown
L-2		USA-129	20 December 1996 18:04	VAFB, SLC-4E	Titan IV	LEO	KH-11 12[5]	Optical imaging	Deorbited		Reentered on 1 May 2014.[6][7]
L-3		USA-133	24 October 1997 02:32	VAFB, SLC-4E	Titan IV	679 × 666 km × 57° (LEO)[8]	Lacrosse 3	Synthetic-aperture radar	Entered service, status unknown
L-4	Oscar	USA-136	8 November 1997 02:05	CCAFS, SLC-41	Titan IV/Centaur	36,523 × 3,849 km × 63.6° (Molniya)[9]	Trumpet 3[10]	ELINT	Entered service, status unknown
L-5	Capricorn [1]	USA-137	29 January 1998 18:37	CCAFS, SLC-36A	Atlas IIA	Molniya	Quasar 12[4]	Communications	Entered service, status unknown
L-6	Jack	USA-139 [11]	9 May 1998 01:38	CCAFS, SLC-40	Titan IV/Centaur	35,945 × 35,642 km × 8.4° (GSO) [12]	Orion 4[13]	SIGINT	Entered service, presumed active
L-7	Elwood	N/A	12 August 1998 11:30	CCAFS, SLC-41	Titan IV/Centaur	GSO (planned)	Mercury	ELINT	Destroyed	"Cheers! Saving the Best for Last!!"	Rocket self-destructed 40 seconds into launch due to guidance problem.[14]
L-8		USA-140, USA-141	3 October 1998 10:04	VAFB, LC-576E	Taurus 1110	LEO	STEX	Technology	Entered service, status unknown		ATEX experiment jettisoned on 16 January 1999 and catalogued as USA-141.
L-9		USA-144[1]	22 May 1999 09:36[15]	VAFB, SLC-4E[15]	Titan IVB		Misty	Optical imaging	Entered service, status unknown		First Titan IV-B launch from VAFB.
L-10	Ursa Major[1] (Great Bear)	USA-155	6 December 2000 02:47[2]	CCAFS, SLC-36A	Atlas IIAS	35,854 × 35,732 km × 9.3° (GSO) [16]	Quasar 13[4]	Communications	Entered service, presumed active
L-11	Onyx / Vega	USA-152	17 August 2000 23:45	VAFB, SLC-4E	Titan IVB	695 × 689 km × 68° (LEO)[8]	Lacrosse 4	SAR	Entered service, status unknown
L-12	Aquila[1]	USA-162	11 October 2001 02:32 [2]	CCAFS, SLC-36B	Atlas IIAS	35,803 × 35,785 km × 10.9° (GSO) [17]	Quasar 14[4]	Communications	Entered service, presumed active
L-13	Gemini[1]	USA-160	8 September 2001 15:25	VAFB, SLC-3E[2]	Atlas IIAS	1,486 × 740 km × 63.4° (LEO) [18]	Intruder 5A & 5B[19]	Naval reconnaissance	Entered service, status unknown		Two satellites.
L-14		USA-161	5 October 2001 21:21	VAFB, SLC-4E	Titan IVB	LEO	KH-11 13[5]	Optical reconnaissance	Deorbited		Reentered in November 2014.[20][21]
L-15		USA-237	29 June 2012 13:15 [22]	CCAFS, SLC-37B	Delta IV Heavy (first RS-68A upgrade)	35,960 × 35,628 km × 2.8° (GSO) [23]	Orion 8[24]	SIGINT	Entered service, presumed active
L-16	Prometheus	USA-182[11]	30 April 2005 00:50 [25]	CCAFS, SLC-40	Titan IVB	728 × 725 km × 57.0° (LEO) [26]	Lacrosse 5[8]	SAR	Entered service, status unknown
L-17	GeoLITE[1]	USA-158	18 May 2001 17:45 [27]	CCAFS, SLC-17B	Delta II 7925-9.5	GSO	GeoLITE	Technology demonstration	Retired		Boosted to graveyard orbit after end of mission.[28] Testbed for experimental laser and UHF communications payloads.[29]
L-18	Libra[1]	USA-173	2 December 2003 10:04[2]	VAFB, SLC-3E	Atlas IIAS	1,435 × 786 km × 63.4° (LEO) [30]	Intruder 6A & B[19]	Naval reconnaissance	Entered service, status unknown		Two satellites.
L-19	Homer [31]	USA-171 [11]	9 September 2003 04:29 [32]	CCAFS, SLC-40	Titan IVB-Centaur	35,995 × 35,592 km × 11.4° (GSO) [33]	Orion 5[24]	SIGINT	Entered service, presumed active
L-20		USA-186 [11]	19 October 2005 18:05 [34]	VAFB, SLC-4E	Titan IVB	473 × 268 km × 96.9° (LEO) [35]	KH-11 14[5]	Optical imaging Zdroj:https://en.wikipedia.org?pojem=NROL-87 Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.  Navigácia: Veda > Analytika Antropológia Aplikované vedy Bibliometria Dejiny vedy Encyklopédie Filozofia vedy Forenzné vedy Humanitné vedy Knižničná veda Kryogenika Kryptológia Kulturológia Literárna veda Medzidisciplinárne oblasti Metódy kvantitatívnej analýzy Metavedy Metodika Metodológia vedy Náboženstvo a veda Náučná literatúra Podvody vo vede Popularizácia vedy Potravinárstvo Prírodné vedy Pseudoveda Scientometria Spoločenské vedy Teórie Teatrológia Technické vedy Technika Terminológia Umenie Výskum Veda Veda a technika podľa štátu Veda a technika podľa kontinentu Veda a technika podľa roka Veda v kozme Vedci Vedecká literatúra Vedecké databázy Vedecké experimenty Vedecké konferencie Vedecké metódy Vedecké ocenenia Vedecké organizácie Vedecké parky Vedeckí spisovatelia Vzdelávanie Záhady Príbuzné výrazy: Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia. www.astronomia.sk | www.biologia.sk | www.botanika.sk | www.dejiny.sk | www.economy.sk | www.elektrotechnika.sk | www.estetika.sk | www.farmakologia.sk | www.filozofia.sk | Fyzika | www.futurologia.sk | www.genetika.sk | www.chemia.sk | www.lingvistika.sk | www.politologia.sk | www.psychologia.sk | www.sexuologia.sk | www.sociologia.sk | www.veda.sk I www.zoologia.sk