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FLOCK 4H-15

In orbit NORAD 66718 NIFZ-4843-1866-5025-7968

Observations 0
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Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)

Falcon 9 Block 5

Carrier rocket

Space Launch Complex 4E

Spaceport

0

Observations all time

Mission information
Spacecraft name
FLOCK 4H-15
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch
Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)
Carrier rocket
Falcon 9 Block 5
Spaceport
Space Launch Complex 4E
Launch time
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
494.04 km
Apogee
497.55 km
Inclination
97.4°
Period
94.6 min
Semi-major axis
6873.9 km
Velocity
7.61 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-14 14:09:04 UTC
Two-line elements (TLE)
1 66718U 25276BE  26287.15712396  .00026436  00000-0  11467-2 0  9991
2 66718  97.4108 358.7591 0002553 330.0259  30.0830 15.22324427 48495
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Orbit history, past year

Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.

Prediction divergence

Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.

Time of closest approach, UTC Object 1 Object 2 Distance, km Speed, km/s Max. probability
2026-10-15 19:48:39 STARLINK-1451
NORAD 45668 		FLOCK 4H-15
NORAD 66718 		4.798 14.12 2.8e-06
2026-10-16 09:09:29 FLOCK 4H-15
NORAD 66718 		AGGIESAT6 (AGS6)
NORAD 68634 		4.995 9.38 1.4e-07
2026-10-16 18:14:06 YAOGAN-39 03B
NORAD 57988 		FLOCK 4H-15
NORAD 66718 		4.384 11.93 1.5e-07
2026-10-16 20:50:43 FLOCK 4H-15
NORAD 66718 		ZORKIY-2M-5
NORAD 67295 		4.837 0.24 1.9e-07
2026-10-17 04:53:22 SPACEMOBILE-001
NORAD 61047 		FLOCK 4H-15
NORAD 66718 		4.718 12.29 1.3e-07
2026-10-17 22:37:44 FLOCK 4H-15
NORAD 66718 		FLOCK 4H-32
NORAD 66735 		4.792 0.00 1.3e-07
2026-10-18 03:34:39 FLOCK 4H-15
NORAD 66718 		CZ-4C DEB
NORAD 37569 		2.412 8.33 6.5e-07
2026-10-18 04:22:01 FLOCK 4H-15
NORAD 66718 		FLOCK 4H-23
NORAD 66726 		4.940 0.01 1.8e-07
2026-10-18 21:47:28 FLOCK 4H-15
NORAD 66718 		TRANSPORTER-16 OBJECT AT
NORAD 68457 		2.852 12.68 3.4e-07
2026-10-19 05:25:19 FLOCK 4H-15
NORAD 66718 		AVUM R/B
NORAD 49467 		4.575 15.15 7.3e-08
2026-10-20 06:48:09 FLOCK 4H-15
NORAD 66718 		COSMOS 2251 DEB
NORAD 35071 		1.838 12.97 7.8e-07
2026-10-20 09:44:52 FLOCK 4H-15
NORAD 66718 		COSMOS 2251 DEB
NORAD 37968 		3.278 3.50 4.0e-07

Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.

All conjunctions of this satellite