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DOY 173 | 2024-06-21T05:26:11Z
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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). Payloads include a variety of satellites, spacecraft, and rockets 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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CALSPHERE 1 details
NORAD ID900
COSPAR ID
1964-063C
Orbit
LEO
Last TLE update1 day ago
Origin
Flag of USNRL (US)
ManufacturerNRL
BusNRL 14"
MotorUnknown
Mass1 kg wet, 1 kg dry
Launch date (UTC)
1964-10-06 (60 years ago)
Launch vehicle
Thor Ablestar
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Radar Cross SectionSmall (<0.1 m²)
Predictive object data (real-time)
Latitude41.60943°
Longitude-1.49207°
Altitude1,005.727 km
Speed7.344 km/s
Apparent Right ascension12h 15m 16s
Apparent Declination35° 02' 03"
Sunlit
Object is in daylight
Predictive observer data (real-time)
Local Sidereal Time16:25:21
Azimuth285.237° WNW
Elevation41.158°
Doppler factor1
Orbital elements
Apogee997.339 km
Perigee959.452 km
Semi-major axis7,356.532 km
Eccentricity0.0025751
Inclination90.2044°
RAAN55.4406°
Arg. of periapsis338.2849°
True anomaly139.84108°
Mean anomaly139.6505°
Mean motion3.4398 °/min
BSTAR0.00071013
Period104.66 mins
Definitive object data (Epoch: 2024-06-19T21:54:07.045Z)
Latitude61.96139°
Longitude-1.31911°
Altitude1,006.554 km
Speed7.347 km/s
True Right ascension15h 43m 17s
True Declination61° 49' 24"
Sunlit
Object was in daylight at TLE epoch
TLE from 1 day ago
0 CALSPHERE 1
1 00900U 64063C   24171.91258154  .00000689  00000-0  71013-3 0  9996
2 00900  90.2044  55.4406 0025751 338.2849 139.6505 13.75082048971409
Epoch: 2024-06-19T21:54Z
No data available

CALSPHERE 1 Visibility forecast

Observer location: 39.9160978°, -105.1181434, 0m alt.

CALSPHERE 1 is not visible in the next 10 days
Span
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Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.