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CAS500-3

In orbit NORAD 66655 IGUM-2152-0197-4071-8038 South Korea

Observations 0
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2025

Nuri | CAS500-3

KSLV-2 Nuri

Carrier rocket

LC-2

Spaceport

0

Observations all time

Mission information
Spacecraft name
CAS500-3
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch
Nuri | CAS500-3
Carrier rocket
KSLV-2 Nuri
Spaceport
LC-2
Launch time
2025-11-26 15:54:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
597.65 km
Apogee
602.48 km
Inclination
97.7°
Period
96.8 min
Semi-major axis
6978.2 km
Velocity
7.54 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-10 20:56:59 UTC
Two-line elements (TLE)
1 66655U 25274F   26283.51545587  .00001019  00000-0  11582-3 0  9990
2 66655  97.7452 208.9281 0003537 194.6243 165.4872 14.88367947 47305
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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
2026-10-10 22:26:01 CAS500-3
NORAD 66655 		NOAA 16 DEB
NORAD 41094 		4.252 4.99 2.3e-07
2026-10-11 14:37:49 CAS500-3
NORAD 66655 		DELTA 1 DEB
NORAD 9003 		4.220 11.11 1.8e-07
2026-10-11 16:02:42 XINGCHI-1 02B
NORAD 58498 		CAS500-3
NORAD 66655 		4.323 14.71 9.4e-08
2026-10-11 19:33:31 CAS500-3
NORAD 66655 		CZ-6A DEB
NORAD 54598 		4.989 14.44 7.7e-08
2026-10-12 02:04:59 CAPELLA-13 (ACADIA-3)
NORAD 60419 		CAS500-3
NORAD 66655 		2.136 8.61 8.2e-07
2026-10-12 02:34:41 FFLY02
NORAD 65322 		CAS500-3
NORAD 66655 		4.298 14.36 1.1e-07
2026-10-12 02:53:26 CAPELLA-13 (ACADIA-3)
NORAD 60419 		CAS500-3
NORAD 66655 		4.692 8.58 1.7e-07
2026-10-14 10:56:53 CAS500-3
NORAD 66655 		CZ-4B DEB
NORAD 26260 		4.900 14.85 6.9e-08
2026-10-14 16:48:38 CAS500-3
NORAD 66655 		SL-14 R/B
NORAD 19275 		2.926 15.01 4.3e-07
2026-10-15 12:49:00 CAS500-3
NORAD 66655 		CZ-6A DEB
NORAD 54927 		4.575 14.67 8.5e-08
2026-10-16 06:34:10 CAS500-3
NORAD 66655 		FENGYUN 1C DEB
NORAD 38783 		3.072 14.69 1.9e-07
2026-10-16 06:36:05 CAS500-3
NORAD 66655 		CZ-6A DEB
NORAD 55550 		4.468 14.44 9.6e-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