Success
Cygnus CRS-2 NG-23 (S.S. William “Willie” C. McCool)
Resupply
SpaceX(SpX)CommercialFalcon 9 Block 5
LEOorbit
This is the 23rd flight of the Northrop Grumman's uncrewed resupply spacecraft Cygnus and its 22nd flight to the International Space Station under the Commercial Resupply Services contract with NASA.
Sunday, September 14, 2025 at 10:11 PM
Replay
Flight Timeline
- T-38:00GO for Prop Load
- T-35:00Stage 1 LOX Load
- T-35:00Prop Load
- T-16:00Stage 2 LOX Load
- T-07:00Engine Chill
- T-01:00Startup
- T-01:00Tank Press
- T-00:45GO for Launch
- T-00:03Ignition
- T+00:00Liftoff
- T+01:12Max-Q
- T+02:12MECO
- T+02:16Stage 2 Separation
- T+02:24SES-1
- T+02:29Booster Boostback Burn Startup
- T+02:52Fairing Separation
- T+03:21Booster Boostback Burn Shutdown
- T+06:10Entry Burn Startup
- T+06:30Entry Burn Shutdown
- T+07:21Stage 1 Landing Burn
- T+07:54Stage 1 Landing
- T+08:31SECO-1
- T+14:33Payload Separation
Links
Mission details
The International Space Station programme is tied together by a complex set of legal, political and financial agreements between the sixteen nations involved in the project, governing ownership of the various components, rights to crewing and utilization, and responsibilities for crew rotation and resupply of the International Space Station. It was conceived in 1984 by President Ronald Reagan, during the Space Station Freedom project as it was originally called.
Nov 20, 1998 — ongoing
Commercial Resupply Services (CRS) are a series of flights awarded by NASA for the delivery of cargo and supplies to the International Space Station.The first CRS contracts were signed in 2008 and awarded $1.6 billion to SpaceX for twelve cargo Dragon and $1.9 billion to Orbital Sciences for eight Cygnus flights, covering deliveries to 2016. The Falcon 9 and Antares rockets were also developed under the CRS program to deliver cargo spacecraft to the ISS.
Dec 23, 2008 — ongoing
Orbital Attempt
#7,063
SpX Mission
#569
Pad Launch
#334
Location Launch
#1,052
Designator
2025-208
Weather GO
90%
Weather Concerns
Cumulus Cloud Rule, Surface Electric Fields Rule, Lightning Rule
Launch Window
NET
Sep 14, 2025, 10:11 PM
Precision
Second
Schedule Changes
1 update
Falcon 9 Block 5 Specs
Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.
Length
70 m
Diameter
3.65 m
Launch Mass
549 t
Thrust
7,607 kN
LEO Capacity
22,800 kg
GTO Capacity
8,300 kg
Launch Cost
$52M
Reusable
Yes
Maiden Flight
2018
Fastest Turnaround
1h 5m
Total Launches
586
Successful
585
Failed
1
Consecutive Success
288
Maiden flight: May 11, 2018
Social Flight Log
- Sep 15, 2025, 12:04 AM
Spacecraft in operation with solar arrays deployed.
Source - Sep 14, 2025, 10:27 PM
Spacecraft separation.
Source - Sep 14, 2025, 10:12 PM
Liftoff.
Source - Sep 14, 2025, 9:49 PM
Official Webcast by NASA has started
Source - Sep 14, 2025, 9:30 PM
Updated launch weather, 85% GO.
Source - Sep 13, 2025, 11:11 PM
Tweaked T-0.
Source - Sep 13, 2025, 1:46 PM
Weather is 75% favorable for launch.
Source - Sep 12, 2025, 8:28 PM
Updated launch weather, 70% GO.
Source - Sep 7, 2025, 10:56 PM
Tweaked T-0.
Source - Sep 5, 2025, 2:04 PM
Moved up to September 14.
Source - Aug 29, 2025, 2:50 AM
GO for launch.
Source - Aug 22, 2025, 1:34 PM
NET 15th September at 6 PM local from SLC-40
Source - Apr 25, 2025, 7:00 PM
NET mid-September.
Source - Mar 24, 2024, 12:14 AM
NET August 2025. (page SO-27)
Source
SpaceX
Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.
Founded
2002
Administrator
CEO: Elon Musk
Total Launches
681
Successful
666
Failed
15
Pending
120
Consecutive Success
166
Cape Canaveral SFS, FL, USA
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Timezone
America/New_York
Local Launch Time
Sep 14, 2025, 6:11 PM
Total Launches
1,109
Total Landings
75
Coordinates
28.4889, -80.5778