CALSPHERE 1, 900
Orbit data source: Space-Track
CALSPHERE 1, 900 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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900 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
13 hours ago
Origin
Manufacturer
NRL
Mission
Operational Defense Calibration
Bus & Motor
NRL 14", Unknown motor
Mass
1 kg wet, 1 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 13 hours ago
0 CALSPHERE 1
1 900U 64063C 25182.18575784 .00000500 00000-0 50406-3 0 9994
2 900 90.2156 63.7128 0023242 277.9550 203.2850 13.76099985 23135Epoch: 2025-07-01T04:27Z
TLE epoch observation values (Epoch: 2025-07-01T04:27:29.477Z)
Latitude
58.95636°
Longitude
-102.28851°
Altitude
1,003.537 km
Speed
7.348 km/s
True Right ascension
16h 16m 16s
True Declination
58° 48' 33"
Sunlit
Visualization orbit readout
Latitude
-50.11073°
Longitude
77.62419°
Altitude
983.053 km
Speed
7.366 km/s
Apparent Right ascension
22h 14m 25s
Apparent Declination
-82° 39' 56"
Sunlit
Visualization observer readout
Local Sidereal Time
05:14:57
Azimuth
189.463° SSW
Elevation
-41.451°
Doppler factor
1
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Other satellites on launch #63 in the year 1964 (1964-10-06 UTC)
CALSPHERE 1 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-07-01 17:58:20.440Z | 244.661° WSW | 2025-07-01 18:01:20.440Z | 275.914° WNW | 17.023° | 2025-07-01 18:05:20.440Z | 318.47° NNW |
| 7 mins | 2025-07-02 03:11:20.440Z | 49.163° ENE | 2025-07-02 03:14:20.440Z | 85.053° E | 19.217° | 2025-07-02 03:18:20.440Z | 126.032° SE |
| 10 mins | 2025-07-02 04:54:20.440Z | 349.95° N | 2025-07-02 04:58:20.440Z | 295.873° NW | 39.791° | 2025-07-02 05:04:20.440Z | 201.595° SSW |
| 5 mins | 2025-07-02 14:57:20.440Z | 88.732° E | 2025-07-02 14:59:20.440Z | 66.421° ENE | 15.617° | 2025-07-02 15:02:20.440Z | 36.758° NE |
| 10 mins | 2025-07-02 16:38:20.440Z | 186.36° SSW | 2025-07-02 16:42:20.440Z | 246.692° WSW | 43.621° | 2025-07-02 16:48:20.440Z | 353.143° N |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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