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SPAWAR-CAL-O

In orbit NORAD 43766 DZVO-8215-7307-6934-1200

Observations 0
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Falcon 9 Block 5 | Spaceflight SSO-A

Falcon 9 Block 5

Carrier rocket

Space Launch Complex 4E

Spaceport

0

Observations all time

Mission information
Spacecraft name
SPAWAR-CAL-O
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 | Spaceflight SSO-A
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
441.35 km
Apogee
450.12 km
Inclination
97.4°
Period
93.6 min
Semi-major axis
6823.9 km
Velocity
7.63 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-11 04:56:36 UTC
Two-line elements (TLE)
1 43766U 18099J   26283.94178018  .00033768  00000-0  87073-3 0  9997
2 43766  97.4200 349.1420 0006428 223.3560 136.7180 15.39092586431309
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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 12:50:04 SPAWAR-CAL-O
NORAD 43766 		STARLINK-38016
NORAD 100406 		3.981 14.12 4.1e-06
2026-10-11 20:40:22 SPAWAR-CAL-O
NORAD 43766 		STARLINK-3193
NORAD 49754 		4.132 13.12 4.6e-06
2026-10-12 23:35:18 SPAWAR-CAL-O
NORAD 43766 		TEVEL2-6
NORAD 63215 		3.569 15.09 1.3e-07
2026-10-13 01:08:56 SPAWAR-CAL-O
NORAD 43766 		TEVEL2-6
NORAD 63215 		1.532 15.09 6.9e-07
2026-10-13 03:29:23 SPAWAR-CAL-O
NORAD 43766 		TEVEL2-6
NORAD 63215 		4.749 15.06 7.2e-08
2026-10-13 19:52:40 SPAWAR-CAL-O
NORAD 43766 		TEVEL2-3
NORAD 63218 		4.092 15.09 9.6e-08
2026-10-13 21:01:19 SPAWAR-CAL-O
NORAD 43766 		STARLINK-3938
NORAD 52566 		3.931 13.84 4.5e-06
2026-10-14 04:48:03 SPAWAR-CAL-O
NORAD 43766 		STARLINK-4491
NORAD 53408 		4.145 14.20 3.7e-06
2026-10-16 02:52:48 RADFXSAT (FOX-1B)
NORAD 43017 		SPAWAR-CAL-O
NORAD 43766 		4.875 14.94 7.3e-08
2026-10-16 13:10:19 SPAWAR-CAL-O
NORAD 43766 		EXO-0
NORAD 59175 		2.117 1.99 9.8e-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