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USSF-⁠432

Falcon 9Vandenberg, California

T minus 6 days 4 hours 56 minutes

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Webcast starts Mon 2 Nov ·

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Mission

A classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield satellite bus, based on locations of rocket stage drop zones being exact fits with previous Starlink Group 15 launches.

Falcon 9 will launch USSF-⁠432 from Space Launch Complex 4E (SLC-⁠4E) at Vandenberg Space Force Base in California. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, about 574 km downrange.

Mission briefing from SpaceX

SpaceX is targeting Sunday, November 1 for a Falcon 9 launch of the USSF-⁠432 mission from Space Launch Complex 4E (SLC-⁠4E) at Vandenberg Space Force Base in California. The four-⁠hour launch window opens at 5:56 p.m. PT. If needed, there is a backup opportunity on Monday, November 2 at 5:42 p.m. PT.

A live webcast of the USSF-⁠432 mission will begin about 10 minutes prior to liftoff, which you can watch here and on X @SpaceX.

This will be the eighth flight for the first stage booster supporting this mission, which previously launched GPS III-⁠8 and six Starlink missions. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, which will be stationed in the Pacific Ocean.

There is the possibility that residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the launch, but what residents experience will depend on weather and other conditions.

Liftoff
Sun 17:56 PST at the pad
Window
– 4 h
Rocket
Falcon 9 Block 5SpaceX
Destination
Low Earth Orbit
Launch site
Space Launch Complex 4E, Vandenberg, California69th launch from this pad in 20262 days after the last
Sonic boom
There is the possibility that residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the launch, but what residents experience will depend on weather and other conditions.
Latest update
Added launch.

8th

Flight of B1095

574km

Downrange landing, OCISLY

125th

SpaceX launch of 2026

195days

Since B1095’s last flight

Countdown

All times approximate, in your time zone (CET)Timeline: SpaceX

  1. T minus 38 minutesSpaceX Launch Director verifies go for propellant load
  2. T minus 35 minutesRP-⁠1 (rocket grade kerosene) loading begins
  3. T minus 35 minutes1st stage LOX (liquid oxygen) loading begins
  4. T minus 16 minutes2nd stage LOX loading begins
  5. T minus 7 minutesFalcon 9 begins engine chill prior to launch
  6. T minus 1 minuteCommand flight computer to begin final prelaunch checks
  7. T minus 1 minutePropellant tank pressurization to flight pressure begins
  8. T minus 45 secondsSpaceX Launch Director verifies go for launch
  9. T minus 3 secondsEngine controller commands engine ignition sequence to start
  10. T minus 0 secondsFalcon 9 liftoff

Flight

From liftoff to orbit

  1. SLC-4E
  2. OCISLY574 km downrange
  3. LiftoffT+00:00:00
  4. Max QT+00:01:07
  5. Stage separationT+00:02:29
  6. FairingT+00:02:55
  7. LandingT+00:08:26
  1. SLC-4E
  2. OCISLY574 km downrange
  3. LiftoffT+00:00:00
  4. Stage separationT+00:02:29
  5. LandingT+00:08:26
  1. SLC-4E
  2. OCISLY574 km downrange
  3. LiftoffT+00:00:00
  4. Max QT+00:01:07
  5. Stage separationT+00:02:29
  6. FairingT+00:02:55
  7. LandingT+00:08:26
Schematic, not to scale. Tap a moment for more.Point at a moment for more.SpaceX’s graphic
Planschematic

8 min from liftoffin your time zone (CET)

  1. T plus 1 minute 7 secondsMax Q (moment of peak mechanical stress on the rocket)
  2. T plus 2 minutes 26 seconds1st stage main engine cutoff (MECO)
  3. T plus 2 minutes 29 seconds1st and 2nd stages separate
  4. T plus 2 minutes 36 seconds2nd stage engine starts (SES-⁠1)
  5. T plus 2 minutes 55 secondsFairing separation, 2nd stage
  6. T plus 6 minutes 6 seconds1st stage entry burn begins
  7. T plus 6 minutes 30 seconds1st stage entry burn ends
  8. T plus 8 minutes 4 seconds1st stage landing burn begins
  9. T plus 8 minutes 26 seconds1st stage landing

Falcon 9 Block 5

SpaceXReusable642 launches since May 2018, 641 successful

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  • BoosterB1095most recently launched GPS III SV10
About Falcon 9 Block 5

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.

70m

Height

3.7m

Diameter

549t

Mass at liftoff

7.6MN

Thrust at liftoff

23t

Payload to low Earth orbit

8.3t

Payload to geostationary transfer orbit

Orbit estimated from CelesTrak’s elementsMeasured trackSpaceX’s predicted path

In orbit now

The crewed stations, Hubble and Starlink 15-⁠15, once around the Earth every 89 to 94 minutes

SpacecraftAltitudeSpeed
ISSDocked: Soyuz MS-⁠29, Crew-⁠13In sunlight429km27,568km/h
TiangongDocked: Shenzhou-⁠23In sunlight395km27,627km/h
HubbleIn Earth’s shadow466km27,496km/h
Starlink 15-⁠1527 satellites, launched 2 days ago; numbers for the first in lineIn sunlight260km27,918km/h

Estimated for from CelesTrak’s orbital elements, Starlink 15-⁠15’s fitted to SpaceX’s own data, up to 20 h old.

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