CMS 03, 66311
Orbit data source: Space-Track
CMS 03, 66311 is a payload satellite owned by ISRO (IN) in GEO that was launched on Sun, 02 Nov 2025 UTC via a LVM3 launch vehicle from the Sirharikota (SRI). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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Identifier
Orbit
Country
IN / INDRelated business
Manufacturer
ISRO SAC/Banga
Mission
Operational Defense Communications
Bus & Motor
I4K, ISRO LAM
Mass
4,400 kg wet, ~2,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 22.5 m
Radar Cross Section
16.006 m²
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 CMS 03
1 66311U 25249B 26171.40667204 -.00000081 00000-0 00000+0 0 9994
2 66311 0.0166 80.7193 0001691 2.1969 46.0837 1.00271464 2380Epoch: 2026-06-20T09:45Z
TLE epoch observation values (Epoch: 2026-06-20T09:45:36.464Z)
Latitude
0.01994°
Longitude
74.00252°
Altitude
35,781.205 km
Speed
3.075 km/s
True Right ascension
08h 36m 06s
True Declination
0° 01' 12"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
10:20:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,794.886 km
Perigee altitude
35,780.625 km
Semi-major axis
42,165.892 km
Eccentricity
0.00017
Inclination
0.0166°
RAAN
80.7193°
Arg. of periapsis
2.1969°
True anomaly
46.09766°
Mean anomaly
46.0837°
Eccentric anomaly
46.09068°
Mean motion
0.25067 °/min
Orbital period
1,436.15 mins
BSTAR
0
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Other satellites on launch #249 in the year 2025 (2025-11-02 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.CMS 03 Visibility
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
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| CMS 03 is likely not visible in the next few days. |
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66311 neighbors
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Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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