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FLOCK 4H 8

In orbit NORAD 66711 UOVL-5026-1942-2417-7454

Observations 3
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Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)

Falcon 9 Block 5

Carrier rocket

Space Launch Complex 4E

Spaceport

3

Observations all time

Mission information
Spacecraft name
FLOCK 4H 8
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
496.64 km
Apogee
499.92 km
Inclination
97.4°
Period
94.6 min
Semi-major axis
6876.4 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 66711U 25276AX  26287.27416206  .00007265  00000-0  32588-3 0  9995
2 66711  97.4120 359.0902 0002388 343.4740  16.6417 15.21499319 48528
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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 10:30:51 STARLINK-5598
NORAD 55421 		FLOCK 4H-8
NORAD 66711 		3.827 12.62 5.7e-06
2026-10-16 05:18:26 SNAP-3 JIMI
NORAD 40975 		FLOCK 4H-8
NORAD 66711 		3.094 14.93 1.8e-07
2026-10-17 11:28:00 FLOCK 4H-8
NORAD 66711 		CZ-4C DEB
NORAD 43266 		3.623 13.02 2.0e-07
2026-10-18 06:27:08 GHGSAT-C13
NORAD 64548 		FLOCK 4H-8
NORAD 66711 		1.887 5.51 1.2e-06
2026-10-18 19:31:09 TRANSPORTER-13 OBJECT M
NORAD 63221 		FLOCK 4H-8
NORAD 66711 		2.622 15.10 2.3e-07
2026-10-18 21:05:49 TRANSPORTER-13 OBJECT M
NORAD 63221 		FLOCK 4H-8
NORAD 66711 		2.106 15.10 3.5e-07
2026-10-18 21:26:58 OBJECT AJ
NORAD 57036 		FLOCK 4H-8
NORAD 66711 		4.727 4.24 1.9e-07
2026-10-19 02:12:21 FLOCK 4H-8
NORAD 66711 		LEMUR-2-TEODOR
NORAD 66768 		4.444 0.02 2.2e-07
2026-10-19 05:25:55 FLOCK 4H-8
NORAD 66711 		COSMOS 2251 DEB
NORAD 33795 		1.454 14.64 8.8e-07
2026-10-20 08:28:35 FLOCK 4H-8
NORAD 66711 		SL-16 DEB
NORAD 29094 		4.844 15.14 6.6e-08

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