Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/902?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/902?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

902, 1964-063E

Orbit

LEO

Last TLE update

18 hours ago

Origin

United States Navy (US)

Manufacturer

NRL

Mission

Operational Defense Calibration

Bus & Motor

NRL 14", Unknown motor

Mass

10 kg wet, 10 kg dry

Launch date (UTC)

1964-10-06 (61 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.36 m

Radar Cross Section

0.102 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 18 hours ago

0 CALSPHERE 2
1 00902U 64063E   25114.85248154  .00000081  00000-0  10825-3 0  9998
2 00902  90.2297  65.9896 0018817   8.3535  23.5100 13.52858645799704

Epoch: 2025-04-24T20:27Z

Definitive object data (Epoch: 2025-04-24T20:27:34.405Z)

Latitude

32.00481°

Longitude

-94.16454°

Altitude

1,053.084 km

Speed

7.334 km/s

True Right ascension

04h 23m 23s

True Declination

31° 51' 24"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

62.60523°

Longitude

-94.44533°

Altitude

1,064.809 km

Speed

7.329 km/s

Apparent Right ascension

07h 32m 11s

Apparent Declination

21° 06' 19"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:36:34

Azimuth

31.418° NE

Elevation

-22.437°

Doppler factor

Orbital elements

Apogee altitude

1,072.799 km

Perigee altitude

1,044.811 km

Semi-major axis

7,436.942 km

Eccentricity

0.0018817

Inclination

90.2297°

RAAN

65.9896°

Arg. of periapsis

8.3535°

True anomaly

23.5962°

Mean anomaly

23.51°

Eccentric anomaly

23.55308°

Mean motion

3.38417 °/min

BSTAR

0.00010825

Orbital period

106.38 mins

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

Other satellites on launch #63 in the year 1964 (1964-10-06 UTC)

THOR ABLESTAR R/B, 893

OPS 5798 (TRANSIT 5B-4), 897

CALSPHERE 1, 900

OPS 5798 DEB, 901

OPS 5798 DEB, 903

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.
7 mins	2025-04-25 19:31:38.269Z	108.788° ESE	2025-04-25 19:35:38.269Z	69.535° E	16.868°	2025-04-25 19:38:38.269Z	39.19° NE
11 mins	2025-04-25 21:15:38.269Z	185.964° SSW	2025-04-25 21:20:38.269Z	246.506° WSW	43.304°	2025-04-25 21:26:38.269Z	352.172° N
11 mins	2025-04-26 08:24:38.269Z	18.999° NNE	2025-04-26 08:29:38.269Z	86.922° E	36.431°	2025-04-26 08:35:38.269Z	159.614° S
9 mins	2025-04-26 10:11:38.269Z	330.17° NNW	2025-04-26 10:15:38.269Z	283.072° WNW	24.698°	2025-04-26 10:20:38.269Z	231.422° WSW

Authenticating...

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 ascending order

Check out CALSPHERE 2, 902 on other resources

View CALSPHERE 2, 902 on NASA - NSSDCA Website

View CALSPHERE 2, 902 on Heavens-Above

View CALSPHERE 2, 902 on Keep Track

View CALSPHERE 2, 902 on Celestrak

View CALSPHERE 2, 902 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.