Progress MS-08 approaches
the ISS on 15 February 2018.
|Mission type||ISS resupply|
|Mission duration||197 days|
|Spacecraft||Progress MS-08 s/n 438|
|Launch mass||7430 kg|
|Payload mass||2494 kg|
|Start of mission|
|Launch date||13 February 2018,|
08:13:33 UTC 
|Rocket||Soyuz-2.1a s/n U15000-030|
|Launch site||Baikonur, Site 31/6|
|Contractor||Progress Rocket Space Centre|
|End of mission|
|Decay date||30 August 2018|
|Perigee altitude||193.1 km|
|Apogee altitude||241.2 km|
|Epoch||13 February 2018|
|Docking with ISS|
|Docking date||15 February 2018, 10:38 UTC|
|Undocking date||23 August 2018, 02:16 UTC|
|Time docked||188 days|
- New external compartment that enables it to deploy satellites. Each compartment can hold up to four launch containers. First time installed on Progress MS-03.
- Enhanced redundancy thanks to the addition of a backup system of electrical motors for the docking and sealing mechanism.
- Improved Micrometeoroid (MMOD) protection with additional panels in the cargo compartment.
- Luch Russian relay satellites link capabilities enable telemetry and control even when not in direct view of ground radio stations.
- GNSS autonomous navigation enables real time determination of the status vector and orbital parameters dispensing with the need of ground station orbit determination.
- Real time relative navigation thanks to direct radio data exchange capabilities with the space station.
- New digital radio that enables enhanced TV camera view for the docking operations.
- The Ukrainian Chezara Kvant-V on board radio system and antenna/feeder system has been replaced with a Unified Command Telemetry System (UCTS).
- Replacement of the Kurs A with Kurs NA digital system.
- Dry cargo: 1,390 kg
- Fuel: 890 kg
- Oxygen and Air: 46 kg
- Water: 430 kg
Progress MS-08 also includes two nanosatellites: Tanyusha YuZGU-3 (1998-067PJ) and Tanyusha YuZGU-4 (1998-067PK) (a.k.a. Radioskaf RS-8 and Radioskaf RS-9) with a mass of 2.5 kg, which was developed jointly by RKK Energia and students at the South-Western State University, YuZGU, in the city of Kursk. The satellites will be launched by spacewalking cosmonauts.
Undocking and decay
Undocking on 23 August 2018, at 02:16 UTC. And decay in the atmosphere and its debris entered the Pacific Ocean, on 30 August 2018.
- Chris Gebhardt, William Graham and Chris Bergin (15 February 2018). "Progress MS-08 docks with ISS". NASASpaceFlight.com. Retrieved 15 February 2018.CS1 maint: uses authors parameter (link)
- Krebs, Gunter (1 December 2015). "Progress-MS 01-19". Gunter’s Space Page. Retrieved 16 November 2018.
- "Progress MS-08". NSSDCA. NASA. 13 February 2018. Retrieved 30 August 2018. This article incorporates text from this source, which is in the public domain.
- Zak, Anatoly (13 February 2018). "Progress-MS". RussianSpaceWeb. Retrieved 15 February 2018.
- Zak, Anatoly (15 February 2018). "Progress MS-08 arrives at ISS". russianspaceweb.com. russianspaceweb. Retrieved 30 August 2018.