POLAR BEAR, 17070
Orbit data source: Space-Track
POLAR BEAR, 17070 is an American payload satellite in LEO that was launched on Fri, 14 Nov 1986 UTC via an SCOUT G-1 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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17070 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
APL
Mission
Civil Science
Bus & Motor
TRANSIT 5, Unknown motor
Mass
114 kg wet, 114 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Oct Cyl + 4 Pan + 1 Ant, Unknown HBR
Radar Cross Section
0.163 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 POLAR BEAR
1 17070U 86088A 26171.45765818 .00000078 00000-0 70170-4 0 9990
2 17070 89.6182 176.2534 0037065 268.1731 252.0761 13.75288616985864Epoch: 2026-06-20T10:59Z
TLE epoch observation values (Epoch: 2026-06-20T10:59:01.666Z)
Latitude
20.15577°
Longitude
-77.31496°
Altitude
991.729 km
Speed
7.353 km/s
True Right ascension
23h 44m 27s
True Declination
20° 02' 54"
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
02:17:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,004.923 km
Perigee altitude
950.394 km
Semi-major axis
7,355.795 km
Eccentricity
0.00371
Inclination
89.6182°
RAAN
176.2534°
Arg. of periapsis
268.1731°
True anomaly
251.67256°
Mean anomaly
252.0761°
Eccentric anomaly
251.87427°
Mean motion
3.44032 °/min
Orbital period
104.64 mins
BSTAR
0.00007017
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Other satellites on launch #88 in the year 1986 (1986-11-14 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.POLAR BEAR Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 23:26:48.583Z | 126.066° SE | 2026-06-22 23:31:48.583Z | 70.194° E | 22.845° | 2026-06-22 23:35:48.583Z | 27.206° NE |
| 10 mins | 2026-06-23 01:10:48.583Z | 203.288° SW | 2026-06-23 01:15:48.583Z | 278.492° WNW | 36.791° | 2026-06-23 01:20:48.583Z | 343.959° N |
| 10 mins | 2026-06-23 12:08:48.583Z | 13.103° NNE | 2026-06-23 12:13:48.583Z | 98.502° ESE | 40.577° | 2026-06-23 12:18:48.583Z | 166.041° S |
| 7 mins | 2026-06-23 13:54:48.583Z | 318.24° NNW | 2026-06-23 13:57:48.583Z | 283.346° WNW | 19.213° | 2026-06-23 14:01:48.583Z | 242.226° WSW |
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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