Cosmos 2525
| Cosmos 2525 / Zvezda | |
|---|---|
| Type: | Experimental reconnaissance satellite |
| Country: |
 Russia
|
| Operator: | Russian Ministry of Defense |
| COSPAR-ID : | 2018-028A |
| Mission dates | |
| Dimensions: | approx. 150-200 kg |
| Size: | 0.9 × 0.7 × 1.4 m |
| Begin: | March 29, 2018 at 17:38 UTC |
| Starting place: | Plesetsk Cosmodrome |
| Launcher: | Soyuz-2.1v |
| Status: | in orbit / in operation |
| Orbit data | |
| Rotation time : | 90.9 min |
| Track height: | approx. 280 km |
| Orbit inclination : | 96.6 ° |
Kosmos 2525 is a Russian military satellite launched in March 2018 . The designation "Kosmos" with the following number corresponds to a naming scheme for Russian military satellites that has been in use since 1962.
purpose
According to research of the Belgian space experts Bart Hendrickx and the renowned Russian space journalist Anatoly Zak is at Kosmos 2525 satellite around the Zvezda ( Russian Звезда for star ) the manufacturer VNIIEM. This rather small satellite with a mass of around 150 kg serves as a technology demonstrator for MKA-V, a satellite model that is currently being developed for a network of optical reconnaissance satellites. It was developed as part of a project called EMKA (Russian экспериментальный малый космический аппарат , German for example: experimental small spacecraft).
The satellite should test the following techniques:
- Image recording along the flown route on the ground
- Shot in an angle of view away from the route overflown
- Broadband image acquisition
- Illustration of objects
- Video recording
- Stereo image capture
construction
According to Anatoly Zak, Zvezda has a 1.276 × 0.405 × 0.721 meter and no more than 30 kg chassis made of carbon fiber reinforced plastic . It is provided with star sensors , thermal insulation, heating elements made of titanium , temperature sensors , batteries and an interface for connecting the other equipment. The satellite has three-axis stabilization with electrically operated flywheels and hydrazine control drives for position control.
begin
Zvezda was originally scheduled to start in the fourth quarter of 2015. The mission was later postponed to the fourth quarter of 2017, then to early 2018, to February 28, 2018, and to March 23-29. March 2018. The start time was finally set for March 29th around 4:45 pm UTC. With a little delay, the Soyuz-2.1v took off with the satellite at 17:38 from the Plesetsk Cosmodrome . According to the Russian Defense Ministry , the start was successful. The US military then observed the satellite in a near-Earth polar orbit below 315 km altitude. It was the fourth flight of the Soyuz-2.1v. The booster stage of this rocket is operated with only one NK-33 engine instead of the five RD-0124 in the older Soyuz versions and is specially designed for small payloads.
Web links
- Kosmos 2525 in the NSSDCA Master Catalog (English)
Individual evidence
- ↑ Orbit data according to COSMOS 2525. N2YO, April 2, 2018, accessed on April 3, 2018 (English).
- ↑ Cosmos 2525. In: space-track.org. Retrieved March 7, 2019 .
- ^ William Graham: Spectacular Soyuz 2-1v launch deploys Kosmos 2525 . nasaspaceflight.com, March 29, 2018
- ^ A b Stephen Clark: Mysterious Russian reconnaissance satellite successfully launched . Spaceflight Now, April 2, 2018.
- ↑ a b c d Anatoly Zak: Soyuz-2-1v launches a military payload . russianspaceweb.com, accessed April 2, 2018.
- ^ Launch Schedule . Spaceflight Now, archived March 29, 2018.