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, 0.3 m
Radar Cross Section
0.163 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 POLAR BEAR
1 17070U 86088A 26301.87876075 .00000064 00000-0 55250-4 0 9996
2 17070 89.6217 171.1000 0037568 233.1990 137.8046 13.75306941 3782Epoch: 2026-10-28T21:05Z
TLE epoch observation values (Epoch: 2026-10-28T21:05:24.928Z)
Latitude
11.24294°
Longitude
177.59973°
Altitude
1,003.346 km
Speed
7.341 km/s
True Right ascension
11h 24m 41s
True Declination
11° 10' 46"
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
13:56:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,005.227 km
Perigee altitude
949.959 km
Semi-major axis
7,355.73 km
Eccentricity
0.00376
Inclination
89.6217°
RAAN
171.1°
Arg. of periapsis
233.199°
True anomaly
138.09274°
Mean anomaly
137.8046°
Eccentric anomaly
137.94877°
Mean motion
3.44036 °/min
Orbital period
104.64 mins
BSTAR
0.00005525
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-10-30 03:18:08.283Z | 10.189° NNE | 2026-10-30 03:24:08.283Z | 86.235° E | 56.895° | 2026-10-30 03:30:08.283Z | 166.618° S |
| 7 mins | 2026-10-30 05:05:08.283Z | 321.403° NNW | 2026-10-30 05:08:08.283Z | 287.071° WNW | 20.968° | 2026-10-30 05:12:08.283Z | 243.42° WSW |
| 10 mins | 2026-10-30 15:04:08.283Z | 142.303° SSE | 2026-10-30 15:08:08.283Z | 88.506° E | 42.224° | 2026-10-30 15:14:08.283Z | 13.022° NNE |
| 9 mins | 2026-10-30 16:49:08.283Z | 228.028° WSW | 2026-10-30 16:53:08.283Z | 277.606° WNW | 28.714° | 2026-10-30 16:58:08.283Z | 333.813° NNW |
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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