CALSPHERE 2, 902
Orbit data source: Space-Track
CALSPHERE 2, 902 is a payload satellite owned by NRL (US) in LEO that was launched on Tue, 06 Oct 1964 UTC via a THOR ABLESTAR launch vehicle from the Air Force Western Test Range (AFWTR). 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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Edit Public Description
Identifier
Orbit
Last TLE update
19 hours ago
Origin
Manufacturer
NRL
Mission
Operational Defense Calibration
Bus & Motor
NRL 14", Unknown motor
Mass
10 kg wet, 10 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.36 m
Radar Cross Section
0.102 m², Small (<0.1 m²)
Expand to show TLE details & history
TLE from 19 hours ago
0 CALSPHERE 2
1 902U 64063E 25181.93128354 .00000052 00000-0 65080-4 0 9992
2 902 90.2309 67.5641 0019002 161.1945 210.0721 13.52865383809222Epoch: 2025-06-30T22:21Z
TLE epoch observation values (Epoch: 2025-06-30T22:21:02.897Z)
Latitude
11.10879°
Longitude
173.02291°
Altitude
1,076.182 km
Speed
7.309 km/s
True Right ascension
04h 30m 04s
True Declination
11° 02' 48"
Sunlit
Visualization orbit readout
Latitude
-27.55999°
Longitude
173.20675°
Altitude
1,086.121 km
Speed
7.301 km/s
Apparent Right ascension
02h 30m 56s
Apparent Declination
-74° 12' 42"
Sunlit
Visualization observer readout
Local Sidereal Time
05:20:48
Azimuth
191.966° SSW
Elevation
-27.615°
Doppler factor
1
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Other satellites on launch #63 in the year 1964 (1964-10-06 UTC)
CALSPHERE 2 Visibility forecast
Observer location: undefined°, undefined°
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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-07-01 17:56:10.377Z | 224.711° SW | 2025-07-01 18:01:10.377Z | 276.386° WNW | 23.728° | 2025-07-01 18:06:10.377Z | 330.09° NNW |
| 7 mins | 2025-07-02 03:20:10.377Z | 49.05° ENE | 2025-07-02 03:23:10.377Z | 82.139° E | 18.275° | 2025-07-02 03:27:10.377Z | 121.63° SE |
| 10 mins | 2025-07-02 05:05:10.377Z | 352.145° N | 2025-07-02 05:09:10.377Z | 299.54° NW | 41.526° | 2025-07-02 05:15:10.377Z | 198.641° SSW |
| 7 mins | 2025-07-02 15:17:10.377Z | 103.68° ESE | 2025-07-02 15:20:10.377Z | 71.191° E | 18.863° | 2025-07-02 15:24:10.377Z | 31.478° NE |
| 12 mins | 2025-07-02 17:00:10.377Z | 189.847° SSW | 2025-07-02 17:05:10.377Z | 246.365° WSW | 41.779° | 2025-07-02 17:12:10.377Z | 351.596° N |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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