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CHUBUSAT-3

In orbit NORAD 41339 SNUE-9194-2671-9117-0557 Japan

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2016

Launch

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Mission information
Spacecraft name
CHUBUSAT-3
Other names
JJ2YPO
Website
http://www.frontier.phys.nagoya-u.ac.jp/en/chubusat/chubusat_satellite3.html
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch time
2016-02-17 00:00:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
505.56 km
Apogee
517.83 km
Inclination
31.0°
Period
94.8 min
Semi-major axis
6889.8 km
Velocity
7.6 km/s
Orbital elements
TLE source
Space-Track.org
TLE updated
2026-10-07 20:46:50 UTC
Two-line elements (TLE)
1 41339U 16012C   26280.50602456  .00003388  00000-0  15123-3 0  9993
2 41339  31.0056 316.1036 0008906 132.7564 227.3828 15.19339500585295
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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 13:33:27 ION SCV-020
NORAD 64545 		CHUBUSAT-3
NORAD 41339 		4.300 12.14 1.6e-07
2026-10-12 07:33:04 FORESAIL-1 PRIME
NORAD 66778 		CHUBUSAT-3
NORAD 41339 		2.430 10.50 5.7e-07
2026-10-12 23:17:47 STARLINK-4570
NORAD 53690 		CHUBUSAT-3
NORAD 41339 		4.653 12.63 3.8e-06
2026-10-13 03:17:00 MERCURY ONE (M1)
NORAD 66742 		CHUBUSAT-3
NORAD 41339 		4.180 10.80 1.9e-07
2026-10-13 06:26:33 FLOCK 4H-19
NORAD 66722 		CHUBUSAT-3
NORAD 41339 		3.312 10.88 3.0e-07
2026-10-13 12:44:07 LPNTSAT-001 (IOD-1)
NORAD 68408 		CHUBUSAT-3
NORAD 41339 		2.404 12.29 5.0e-07
2026-10-13 15:41:05 STARLINK-4346
NORAD 53073 		CHUBUSAT-3
NORAD 41339 		4.012 13.56 4.5e-06
2026-10-14 08:59:51 KESTREL-0A
NORAD 64624 		CHUBUSAT-3
NORAD 41339 		1.208 8.54 2.6e-06
2026-10-16 07:21:35 VIREON-2
NORAD 68421 		CHUBUSAT-3
NORAD 41339 		3.349 8.42 3.4e-07
2026-10-16 08:38:00 FLOCK 4H-14
NORAD 66717 		CHUBUSAT-3
NORAD 41339 		4.383 11.93 1.5e-07
2026-10-16 09:24:43 TRANSPORTER-18 OBJECT AU
NORAD 100925 		CHUBUSAT-3
NORAD 41339 		4.905 11.82 1.2e-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