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FLOCK 4H-26

In orbit NORAD 66729 ZLIZ-7687-5386-0615-8799

Observations 0
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Transporter-15 Rideshare : VSFB SLC-4E

Falcon 9

Carrier rocket

База Вандерберг

Spaceport

0

Observations all time

Mission information
Spacecraft name
FLOCK 4H-26
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch
Transporter-15 Rideshare : VSFB SLC-4E
Carrier rocket
Falcon 9
Spaceport
База Вандерберг
Launch time
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
497.69 km
Apogee
503.06 km
Inclination
97.4°
Period
94.7 min
Semi-major axis
6878.5 km
Velocity
7.6 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-10 04:46:20 UTC
Two-line elements (TLE)
1 66729U 25276BR  26282.64220389  .00005800  00000-0  26611-3 0  9998
2 66729  97.4100 354.1440 0003905 348.5111  11.6035 15.20805706 47803
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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
2026-10-11 14:58:19 MALLIGYONG-1
NORAD 58400 		FLOCK 4H-26
NORAD 66729 		3.120 15.00 1.7e-07
2026-10-11 18:19:11 FLOCK 4H-26
NORAD 66729 		TABLETSAT-AURORA
NORAD 40017 		4.291 1.27 2.4e-07
2026-10-11 21:29:48 BUZZER-1
NORAD 62609 		FLOCK 4H-26
NORAD 66729 		4.340 0.62 2.3e-07
2026-10-13 12:05:34 PREFIRE-2
NORAD 59881 		FLOCK 4H-26
NORAD 66729 		4.654 14.27 9.4e-08
2026-10-14 03:36:51 HERMES-1
NORAD 63242 		FLOCK 4H-26
NORAD 66729 		4.008 15.09 9.8e-08
2026-10-14 17:25:18 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		4.300 9.04 2.0e-07
2026-10-14 19:00:03 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		2.185 9.04 7.7e-07
2026-10-14 20:34:48 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		1.198 9.04 2.6e-06
2026-10-14 22:09:32 FLOCK 4H-26
NORAD 66729 		TOMORROW-S11
NORAD 67399 		4.098 9.03 2.2e-07
2026-10-14 22:09:33 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		2.914 9.04 4.3e-07
2026-10-14 22:56:56 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		3.996 9.02 2.3e-07
2026-10-14 22:56:56 FLOCK 4H-26
NORAD 66729 		TOMORROW-S11
NORAD 67399 		2.417 9.01 6.3e-07
2026-10-15 00:31:41 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		1.769 9.02 1.2e-06
2026-10-15 02:06:26 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		0.767 9.02 6.2e-06
2026-10-15 03:41:10 FLOCK 4H-26
NORAD 66729 		CARBSAR
NORAD 67397 		2.892 9.02 4.4e-07
2026-10-15 17:04:46 TIANYI C
NORAD 64050 		FLOCK 4H-26
NORAD 66729 		4.496 0.33 2.2e-07
2026-10-16 01:49:06 FLOCK 4H-26
NORAD 66729 		ERMIS-2
NORAD 68420 		3.008 12.65 3.0e-07
2026-10-16 14:23:56 FLOCK 4H-26
NORAD 66729 		FLOCK 4H-34
NORAD 66737 		2.684 0.09 6.1e-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