Ekspress-A1

Russian communications satellite

Ekspress-A1
Spacecraft properties
Names	Экспрeсс-А1 Express-A1 Ekspress-6A No.1

Mission type	Communication
Operator	Russian Satellite Communications Company (RSCC)
Website	https://eng.rscc.ru/
Mission duration	7 years (planned) Failed to orbit


Spacecraft	Ekspress-A1
Spacecraft type	KAUR
Bus	MSS-2500-GSO
Manufacturer	NPO PM (bus) Alcatel Space (payload)
Launch mass	2,600 kg (5,700 lb)
Power	2540 watts


Start of mission
Launch date	27 October 1999, 16:16:00 UTC
Rocket	Proton-K / DM-2
Launch site	Baikonur, Site 200/39
Contractor	Khrunichev State Research and Production Space Center
Entered service	Failed to orbit


Orbital parameters
Reference system	Geocentric orbit (planned) ^[1]
Regime	Geostationary orbit
Longitude	11° West


Transponders
Band	17 transponders: 12 C-band 5 Ku-band
Coverage area	Russia

Ekspress constellation ← Ekspress-2 Ekspress-A2 →

Ekspress-A1 (Russian: Экспрeсс-А1 meaning Express-A1), also designated Ekspress-6A No.1, is a Russian communications satellite which is operated by Russian Satellite Communications Company (RSCC).

Satellite description

It was constructed by NPO Prikladnoi Mekhaniki (ISS Reshetnev) and Alcatel Space and is based on the MSS-2500-GSO satellite bus. It is equipped with seventeen transponders.

Launch

The satellite was launched at Baikonur Cosmodrome at Site 200/39 on 27 October 1999, at 16:16:00 UTC. The launch was made by Khrunichev State Research and Production Space Center, and a Proton-K / DM-2 launch vehicle was used.^[1] It is part of the Ekspress satellite constellation.

The Russian Ekspress-A1 communications satellite was launched in October 1999 but the Proton-K launch vehicle failed early in flight, during second stage burn. This is the second failure of the 8K82K Proton-K in 1999.^[2]

References

^ ^a ^b "Ekspress-A1, -A2, -A3". Gunter's Space Page. 19 May 2020. Retrieved 26 March 2021.
^ "Issue 410". Jonathan's Space Report. 28 October 1999. Retrieved 26 March 2021.

External links

Official website

Ekspress satellites

List of Ekspress satellites

Ekspress

Ekspress-A

Ekspress-AM

AM1
AM2
AM3
AM4
AM4R
AM5
AM6
AM7
AM8
AM11
AM22
AM33
AM44
AMU1
AMU3
AMU7

Ekspress-AT

Ekspress-MD

v t e ← 1998 Orbital launches in 1999 2000 →
January	Mars Polar Lander ROCSAT-1
February	Stardust Globalstar 23, Globalstar 36, Globalstar 38, Globalstar 40 Telstar 6 JCSAT-6 Soyuz TM-29 ARGOS, Ørsted, SUNSAT Arabsat 3A, Skynet 4E Globus No.15
March	Wide Field Infrared Explorer Globalstar 23, Globalstar 37, Globalstar 41, Globalstar 46 AsiaSat 3S DemoSat
April	Progress M-41, Sputnik 99 INSAT-2E USA-142 Eutelsat W3 Globalstar 19, Globalstar 42, Globalstar 44, Globalstar 45 Landsat 7 UoSAT-12 Ikonos-1 ABRIXAS, Megsat-0 USA-143
May	Orion 3 Feng Yun 1C, Shijian 5 TERRIERS, MUBLCOM Nimiq 1 USA-144 Oceansat-1, Kitsat-3, DLR-Tubsat STS-96 (Starshine 1)
June	Globalstar 25, Globalstar 47, Globalstar 49, Globalstar 52 Iridium 14A, Iridium 21A Astra 1H QuikSCAT FUSE
July	Gran' No.45 Molniya 3-50 Globalstar 30, Globalstar 32, Globalstar 35, Globalstar 51 Progress M-42 Okean-O No.1 STS-93 (Chandra) Globalstar 26, Globalstar 28, Globalstar 43, Globalstar 48
August	Telkom 1, Globalstar 24, Globalstar 27, Globalstar 53, Globalstar 54 Kosmos 2365 Kosmos 2366
September	Koreasat 3 Yamal-101, Yamal-102 Foton 12 Globalstar 33, Globalstar 50, Globalstar 55, Globalstar 58 EchoStar V Ikonos 2 Telstar 7 LMI-1 Resurs F-1M
October	USA-145 DirecTV-1R CBERS-1, SACI-1 Globalstar 31, Globalstar 56, Globalstar 57, Globalstar 59 Orion 2 Ekspress A1
November	GE-4 MTSAT-1 Shenzhou 1 Globalstar 29, Globalstar 34, Globalstar 39, Globalstar 61 USA-146
December	Hélios 1B, Clémentine Orbcomm FM30, Orbcomm FM31, Orbcomm FM32, Orbcomm FM33, Orbcomm FM34, Orbcomm FM35, Orbcomm FM36 XMM-Newton † VLS-1 V02 (SACI-2) USA-147 Terra STS-103 Arirang-1, ACRIMSAT, Millennial Galaxy 11 Kosmos 2367 Kosmos 2368
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).