PAD1/5
SITEBaikonur Cosmodrome, Republic of Kazakhstan →ORBITLow Earth Orbit
TYPEResupply
PROGRAMInternational Space Station
MISSION OVERVIEW
Progress 55 will deliver cargo and crew supplies to the International Space Station.
LAUNCH DETAILS
VEHICLE
Soyuz UMISSION
Progress M-23M (55P)
MISSION TYPE
Resupply
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
1/5LAUNCH SITE
Baikonur Cosmodrome, Republic of KazakhstanPROGRAM
International Space Station
COUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 254b64df-aaae-4c33-9914-619e859f6ef1
Reported date: Apr 9, 2014 at 15:26 UTC
Last synced: 2 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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PROGRESS-M (MODIFIED) — PROGRESS M-23M
Progress M-23M (No.427)SERIAL
1FLIGHTS
International Space StationDESTINATION
Single UseSTATUS
Progress M-23M (Russian: u041fu0440u043eu0433u0440u0435u0441u0441 u041c-23u041c), identified by NASA as Progress 55 or 55P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station.
VEHICLE — Soyuz U →
MANUFACTURER
Russian Federal Space Agency (ROSCOSMOS)
FLIGHTS
714
SUCCESSES
694
SUCCESS RATE
97.2%
FREQUENTLY ASKED QUESTIONS
When is the Soyuz-U | Progress M-23M (55P) launch?
The Soyuz-U | Progress M-23M (55P) is scheduled for Wednesday, April 9, 2014 at 3:26 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Progress M-23M (55P)?
The Soyuz-U | Progress M-23M (55P) mission uses the Soyuz U rocket, manufactured by Russian Federal Space Agency (ROSCOSMOS). The Soyuz U has flown 714 times with a 97.2% success rate.
Where is the Soyuz-U | Progress M-23M (55P) launching from?
The launch takes place from 1/5 at Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit is Progress M-23M (55P) going to?
The Progress M-23M (55P) mission is targeting Low Earth Orbit.
Who is launching Progress M-23M (55P)?
The Soyuz-U | Progress M-23M (55P) is operated by Russian Federal Space Agency (ROSCOSMOS). It is part of the International Space Station program.
Can I watch the Soyuz-U | Progress M-23M (55P) launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 29, 2026 00:03 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:03 UTC
Launch date set: Apr 9, 2014 at 15:26 UTC
NET (No Earlier Than) confirmed by Russian Federal Space Agency (ROSCOSMOS)
Mar 29, 2026 00:03 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 2 hours ago
●Launch Library 22 hours ago
Launch ID: 254b64df-aaae-4c33-9914-619e859f6ef1
●Open-Meteo Weather2 hours ago
Pad weather at 45.92, 63.34
●YouTube Video Search2 hours ago
1 video discovered
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