ISS Progress 77 — archive:iss-progress-77
launch attemptArchive-qualified launchcompleted
ISS Progress 77 — archive:iss-progress-77 was an archive-qualified launch conducted on February 14, 2021 from an unresolved launch site using ISS Progress 77 flight vehicle, carrying 3 recorded payload entries. The recorded outcome was success or operational; the census identity distinguishes this attempt from flights that may share a mission name or launch date.
- Launch class
- Archive-qualified launch
- Launch date
- February 14, 2021
- Relationships
- 5
- Sources
- 3
Historical and technical context
Why this launch belongs in the archive
Existing mission record has a dated physical launch and qualified sources but did not meet the deterministic GCAT identity match threshold. This launch is retained as its own historical attempt so its date, vehicle, origin, operator, trajectory, payload, and outcome can be followed without collapsing it into a program total.
ISS Progress 77 — archive:iss-progress-77 used ISS Progress 77 flight vehicle from an unresolved launch site. The technical record includes the International Space Station profile. 3 payload entries are connected to the launch manifest.
At a glance
Launch facts
- Launch class
- Archive-qualified launch
- Launch date
- February 14, 2021
- Vehicle
- ISS Progress 77 flight vehicle
- Outcome
- success or operational
- Launch site
- an unresolved launch site
- Destination / profile
- International Space Station
- Payload entries
- 3
Payload manifest
Archive relationships
Named records, programs, and organizations connected to this archive identity.
- ISS Progress 77Connected mission dossier
- ISS Progress 77 flight vehiclePayload manifest entry
- International Space StationPayload manifest entry
- Uncrewed Russian cargo flightPayload manifest entry
- ISS Progress 77: SpacecraftArchive-native payload or instrument record
- ISS Progress 77: DestinationArchive-native payload or instrument record
- ISS Progress 77: Mission roleArchive-native payload or instrument record
Sources
Original references supporting this record. Each source opens on its publisher’s website.