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FLOCK 4H-12

In orbit NORAD 66715 WJKC-3041-6879-1754-0470

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-12
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
497.01 km
Apogee
497.79 km
Inclination
97.4°
Period
94.6 min
Semi-major axis
6875.5 km
Velocity
7.6 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-14 14:09:04 UTC
Two-line elements (TLE)
1 66715U 25276BB  26287.18991243  .00006699  00000-0  29818-3 0  9990
2 66715  97.4081 359.0391 0000573 246.4207 113.6969 15.21791836 48837
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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
2026-10-16 02:43:21 FLOCK 4H-12
NORAD 66715 		SITRO-AIS-59
NORAD 67257 		3.553 0.13 3.5e-07
2026-10-16 02:43:31 FLOCK 4H-12
NORAD 66715 		OBJECT AG
NORAD 67278 		4.469 0.10 2.2e-07
2026-10-16 06:29:56 STARLINK-4440
NORAD 53671 		FLOCK 4H-12
NORAD 66715 		4.062 14.86 3.1e-06
2026-10-16 08:52:00 STARLINK-4440
NORAD 53671 		FLOCK 4H-12
NORAD 66715 		1.940 14.89 1.4e-05
2026-10-16 10:26:42 STARLINK-4440
NORAD 53671 		FLOCK 4H-12
NORAD 66715 		4.050 14.89 3.2e-06
2026-10-16 20:18:32 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		3.816 0.01 3.0e-07
2026-10-16 20:41:38 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		3.770 0.01 3.0e-07
2026-10-16 21:46:53 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		2.569 0.01 7.6e-07
2026-10-16 22:22:42 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		2.325 0.01 7.6e-07
2026-10-16 22:27:30 FLOCK 4H-12
NORAD 66715 		RASSVET-3 21
NORAD 100087 		4.527 13.88 1.1e-07
2026-10-16 23:16:10 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		1.954 0.01 1.9e-06
2026-10-17 00:02:40 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		1.463 0.01 1.9e-06
2026-10-17 00:45:26 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		2.411 0.01 1.9e-06
2026-10-17 01:42:20 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		2.187 0.01 8.8e-07
2026-10-17 02:13:31 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		3.457 0.01 8.8e-07
2026-10-17 03:21:52 FLOCK 4H-12
NORAD 66715 		T.MICROSAT-1
NORAD 66766 		3.737 0.01 3.1e-07
2026-10-18 03:08:48 FLOCK 4H-12
NORAD 66715 		FREGAT DEB
NORAD 45888 		4.859 15.15 8.1e-08
2026-10-18 04:43:43 FLOCK 4H-12
NORAD 66715 		IRIDIUM 33 DEB
NORAD 46971 		2.444 15.21 2.5e-07
2026-10-18 07:18:41 MAKERSAT 0
NORAD 43016 		FLOCK 4H-12
NORAD 66715 		4.894 15.02 6.7e-08
2026-10-19 05:41:53 FLOCK 4H-12
NORAD 66715 		HAWK-13C
NORAD 67393 		4.615 9.06 1.7e-07
2026-10-20 02:58:35 JAY-C
NORAD 62668 		FLOCK 4H-12
NORAD 66715 		1.977 0.68 1.1e-06
2026-10-20 11:38:32 ELARASAT MMS-1
NORAD 64539 		FLOCK 4H-12
NORAD 66715 		4.697 5.56 1.9e-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