Persona (satellite)
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Script error: No such module "Infobox". Persona is a class of Russian reconnaissance satellites, derived from the Resurs DK class of remote sensing satellite, in turn derived from the Soviet Yantar reconnaissance satellites. The satellites are built by TsSKB-Progress, and the optics by LOMO and the Vavilov State Optical Institute.
Satellite
The first satellite, identified as Kosmos 2441, was launched into a 750 km Sun-synchronous orbit on 26 July 2008, atop a Soyuz-2.1b carrier rocket from LC-43/4 at the Plesetsk Cosmodrome.[1] It reportedly failed to return useful imagery due to an electrical malfunction.[2]
A second satellite, Kosmos 2486, was launched on 7 June 2013[3] and after some initial technical problems, it was apparently operational in Summer 2014.[4]
The third satellite, Kosmos 2506, was successfully launched on 23 June 2015.[5]
Details
The satellites had a mass of Script error: No such module "convert"., are Script error: No such module "convert". long, and Script error: No such module "convert". in diameter. Script error: No such module "Unsubst".
The satellites' optical subsystems are believed to be based on a 3-mirror Korsch type telescope with a primary mirror diameter of Script error: No such module "convert". and focal length of Script error: No such module "convert"..[6]
The CCD sensor is probably ELCT1080v1UScript error: No such module "Unsubst". with a pixel size of 9 μm.[7] The CCD is produced by ELAR, previously known as ELECTRON-OPTRONIC.[8]Script error: No such module "Unsubst".
The focal plane unit is manufactured by NPO Opteks.
The satellites had a nadir image spatial resolution of Script error: No such module "convert"., using panchromatic imagery. They are planned to operate for seven years.Script error: No such module "Unsubst".
Satellites
| Satellite Name | Russian Name | Launch Date | Flight Number | SCN | Status |
|---|---|---|---|---|---|
| Cosmos-2441 | Персона No. 1 | 26 July 2008 | 2008-037A | 33272 | Decommissioned, unable to transmit images seven months after launch |
| Cosmos-2486 | Персона No. 2 | 7 June 2013 | 2013-028A | 39177 | |
| Cosmos-2506 | Персона No. 3 | 23 June 2015 | 2015-029A | 40699 |
Persona Number 1
The launch of the first Persona satellite was planned to be launched in 2004, however technical issues in 2002 pushed the launch date to 2006. Project delays and cost overruns led Russia's two other leading spacecraft developers, NPO Lavochkin and RKK Energia, to propose the launch of a third Araks satellite as a stop-gap measure. The Russian government held to their original plan to launch the Persona satellite delaying the launch until 2007, then January 2008. At the time of the launch, the price tag had reached 5 billion rubles. Despite shipment to the launch site to meet an announced government milestone, the craft was still far from readiness and launch was delayed until the end of the July 2008. Reportedly a botched test in the Spring damaged components.[9]
After an additional delay for technical problems the satellite was launched on 26 July 2008. In February 2009, Rossiskaya Gazeta reported that the first Persona satellite had failed due to issues with onboard electronics. Other theories for the failures include an improperly chosen orbit that place the spacecraft too close to Earth's radiation belt or that imported, low-cost electronics led to a critical failure in aviation components. Consequently, the satellite became unable to transmit images.[9]
References
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- ↑ Разработки и производство ФПЗС и цифровых камер на их основе. // Интернет-журнал "ТелеФото Техника", 01.11.2008 (russian): "Тип ФПЗС ELCT1080v1U ... Размеры элемента, μм 9х9"
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External links
Template:Portal bar Script error: No such module "Military navigation". Template:Orbital launches in 2013 Template:Orbital launches in 2015