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TRANSPORTER-15 OBJECT AB

In orbit NORAD 66691 ZNGT-5025-3965-0622-7714

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
TRANSPORTER-15 OBJECT AB
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
492.87 km
Apogee
497.41 km
Inclination
97.4°
Period
94.6 min
Semi-major axis
6873.3 km
Velocity
7.62 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-11 04:56:39 UTC
Two-line elements (TLE)
1 66691U 25276AB  26283.94052622  .00012968  00000-0  56141-3 0  9997
2 66691  97.4102 355.9732 0003302 328.0465  32.0571 15.22542654 48032
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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
2026-10-12 05:09:20 STARLINK-1417
NORAD 45693 		TRANSPORTER-15 OBJECT AB
NORAD 66691 		4.356 14.25 3.3e-06
2026-10-12 07:31:14 STARLINK-1417
NORAD 45693 		TRANSPORTER-15 OBJECT AB
NORAD 66691 		4.334 14.22 3.4e-06
2026-10-12 20:38:25 TRANSPORTER-15 OBJECT AB
NORAD 66691 		COSMOS 2251 DEB
NORAD 35071 		2.908 11.26 3.7e-07
2026-10-12 21:29:23 COSMOS 2538
NORAD 44424 		TRANSPORTER-15 OBJECT AB
NORAD 66691 		3.128 1.08 4.5e-07
2026-10-13 15:58:09 TRANSPORTER-15 OBJECT AB
NORAD 66691 		DRISHTI
NORAD 69010 		1.803 15.10 4.8e-07
2026-10-13 17:32:50 TRANSPORTER-15 OBJECT AB
NORAD 66691 		DRISHTI
NORAD 69010 		4.447 15.10 7.9e-08
2026-10-15 15:34:10 TRANSPORTER-15 OBJECT AB
NORAD 66691 		TIANYI-51
NORAD 100741 		1.900 13.70 6.5e-07
2026-10-15 16:21:29 TRANSPORTER-15 OBJECT AB
NORAD 66691 		TIANYI-51
NORAD 100741 		2.273 13.73 4.5e-07
2026-10-16 01:12:28 TRANSPORTER-15 OBJECT AB
NORAD 66691 		FLOCK 4H-4
NORAD 66707 		4.889 0.05 1.8e-07
2026-10-16 15:49:42 TRANSPORTER-15 OBJECT AB
NORAD 66691 		THORAD AGENA D DEB
NORAD 4157 		3.719 15.14 1.1e-07
2026-10-16 23:59:37 STARLINK-5620
NORAD 55414 		TRANSPORTER-15 OBJECT AB
NORAD 66691 		2.591 13.06 1.2e-05

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