| 词条 | Yamal 202 |
| 释义 |
| name = Yamal 202 (Ямал-202) | names_list = Yamal 200 KA-2 | image = | image_caption = | image_alt = | image_size = | mission_type = Communication | operator = Gazprom Space Systems | Harvard_designation = | COSPAR_ID = 2003-053A | SATCAT = 28089 | website = | mission_duration = | spacecraft = Yamal 202 | spacecraft_type = Yamal 200 | spacecraft_bus = USP Bus | manufacturer = RSC Energia (bus) Alcatel Space (payload) | launch_mass = {{convert|1326|kg|abbr=on}} | BOL_mass = | landing_mass = | dry_mass = | payload_mass = | dimensions = | power = 3400 | launch_date = {{start date|2003|11|24|06|22|00|7=Z}} | launch_rocket = Proton-K/Blok-DM-2M | launch_site = Baikonur Site 81/23 | launch_contractor = | deployment_from = | deployment_date = | entered_service = | disposal_type = | deactivated = | destroyed = | last_contact = | recovery_by = | recovery_date = | decay_date = | orbit_reference = GEO | orbit_regime = | orbit_longitude = 49°E | orbit_slot = | orbit_semimajor = | orbit_eccentricity = | orbit_periapsis = | orbit_apoapsis = | orbit_inclination = | orbit_period = | orbit_RAAN = | orbit_arg_periapsis = | orbit_mean_anomaly = | orbit_mean_motion = | orbit_repeat = | orbit_velocity = | orbit_epoch = | orbit_rev_number = | apsis = | trans_band = | trans_frequency = 18 C band | trans_bandwidth = | trans_capacity = | trans_coverage = | trans_TWTA = | trans_EIRP = | trans_HPBW = | programme = Yamal Constellation | previous_mission = Yamal 201 | next_mission = Yamal 300K | insignia = | insignia_caption = | insignia_alt = | insignia_size = }}Yamal 202 (Russian: {{lang|ru|Ямал-202}}) was a geostationary communications satellite operated by Gazkom and built by RSC Energia.[1] It was, along with Yamal 201 the second dual launch of the Yamal program and the second iteration of the USP Bus.[2][3][3] It was a {{convert|1351|kg|abbr=on}} satellite with 4,080W of power (3.4 kW at end of life) on an unpressurized bus. It had eight SPT-70 electric thrusters by OKB Fakel for station keeping.[6] Its payload was 18 C band transponders supplied by Space Systems Loral.[7][8] HistoryDuring 1997, even before the launch of their first satellites (Yamal 101 and Yamal 102), Gazkom was planning the second generation. At that time they planned a 24 satellites of the second generation. This extremely aggressive plan was scaled back by 2001 with a plan to launch four 200 series satellites. The first two, Yamal 201 and Yamal 202 would be launched by 2001 and the second pair, Yamal 203 and Yamal 204 by 2004. Yamal 201 and Yamal 203 would be identical and be positioned at the 90°E slot and Yamal 202 and Yamal 204 would also be twins and be positioned at the 49°E slot. Yamal 202 was launched along Yamal 201 November 24, 2003 at 16:2 UTC from Baikonur Site 81/23 by a Proton-K/Blok-DM-2M directly to GEO.[9] The launch and satellite deployment was successful and Yamal 201 was commissioned into service.[10] As of July 22, 2016 it is still in service and at 12 years and 8 months it has surpassed its design life of 12.5 years.[11] See also{{Portal |Spaceflight}}
References1. ^1 {{cite web |url=http://www.gazprom-spacesystems.ru/en/infrastructure/?ELEMENT_ID=4142 |title=Yamal-202 technical performance |publisher=Gazprom Space Systems |access-date=2016-07-20}} [1][2][3][4][5][6][7][8][9]2. ^1 {{cite web |last1=Krebs |first1=Gunter Dirk |title=RKK Energiya: USP (Victoria) |url=http://space.skyrocket.de/doc_sat/energiya_usp.htm |website=Gunter's Space Page |accessdate=2016-07-20 |date=2015-10-16}} 3. ^1 {{cite web |last1=Krebs |first1=Gunter Dirk |title=Yamal 202, 204 |url=http://space.skyrocket.de/doc_sdat/yamal-202.htm |website=Gunter's Space Page |accessdate=2016-07-20 |date=2016-04-17}} 4. ^1 {{cite web |last1=Pillet |first1=Nicolas |title=Proton-K 24 novembre 2003 |trans-title=November 24, 2003 Proton-K |url=http://www.kosmonavtika.com/lancements/2003/24112003/24112003.html |website=Kosmonavtika |language=French |accessdate=2016-07-20}} 5. ^1 {{cite web |last1=Pillet |first1=Nicolas |title=Descriptif technique Yamal-200 |trans-title=Yamal-200 technical description |url=http://www.kosmonavtika.com/satellites/yamal/tech/2.html |website=Kosmonavtika |language=French |accessdate=2016-07-20}} 6. ^1 {{cite web |last1=Pillet |first1=Nicolas |title=Yamal/Historie/Premier tir, premier revers |trans-title=Yamal/History/The first setbacks |url=http://www.kosmonavtika.com/satellites/yamal/histoire/3.html |website=Kosmonavtika |language=French |accessdate=2016-07-20}} 7. ^1 2 {{cite web |last1=Pillet |first1=Nicolas |title=Yamal/Historie/La deuxième génération |trans-title=Yamal/History/The second generation |url=http://www.kosmonavtika.com/satellites/yamal/histoire/4.html |website=Kosmonavtika |language=French |accessdate=2016-07-20}} 8. ^1 {{cite web |last1=Zak |first1=Anatoly |title=Yamal communication satellites |url=http://www.russianspaceweb.com/yamal.html |website=RussiaSpaceWeb.com |accessdate=2016-07-20 |date=April 21, 2016}} 9. ^1 {{cite web|title=Yamal 202 |url=https://www.satbeams.com/satellites?norad=28089 |publisher=Satbeams |accessdate=20 July 2016}} }} External links
4 : Yamal satellites|Satellites using the USP bus|Spacecraft launched in 2003|2003 in Russia |
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