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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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<iframe src="https://www.satcat.com/sats-embedded/17070?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/17070?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

17070, 1986-088A

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

APL

Mission

Civil Science

Bus & Motor

TRANSIT 5, Unknown motor

Mass

114 kg wet, 114 kg dry

Launch date (UTC)

1986-11-14 (39 years ago)

Launch vehicle

SCOUT G-1

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Oct Cyl + 4 Pan + 1 Ant, Unknown HBR

Radar Cross Section

0.163 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 POLAR BEAR
1 17070U 86088A   26092.27778387  .00000138  00000-0  13163-3 0  9992
2 17070  89.6254 179.3929 0040735 144.8435 273.5410 13.75275448974984

Epoch: 2026-04-02T06:40Z

TLE epoch observation values (Epoch: 2026-04-02T06:40:00.526Z)

Latitude

58.00967°

Longitude

-110.64124°

Altitude

988.826 km

Speed

7.364 km/s

True Right ascension

11h 59m 57s

True Declination

57° 51' 35"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

00:23:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,007.669 km

Perigee altitude

947.741 km

Semi-major axis

7,355.842 km

Eccentricity

0.00407

Inclination

89.6254°

RAAN

179.3929°

Arg. of periapsis

144.8435°

True anomaly

273.07496°

Mean anomaly

273.541°

Eccentric anomaly

273.30799°

Mean motion

3.44029 °/min

Orbital period

104.64 mins

BSTAR

0.00013163

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Other satellites on launch #88 in the year 1986 (1986-11-14 UTC)

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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	2026-04-02 19:12:22.441Z	334.071° NNW	2026-04-02 19:16:22.441Z	288.311° WNW	23.981°	2026-04-02 19:21:22.441Z	229.883° WSW
9 mins	2026-04-03 05:13:22.441Z	129.263° SE	2026-04-03 05:17:22.441Z	74.498° E	28.02°	2026-04-03 05:22:22.441Z	18.804° NNE
9 mins	2026-04-03 06:57:22.441Z	216.876° SW	2026-04-03 07:01:22.441Z	270.237° WNW	30.706°	2026-04-03 07:06:22.441Z	336.84° NNW
10 mins	2026-04-03 17:54:22.441Z	6.133° NNE	2026-04-03 17:59:22.441Z	109.841° ESE	44.151°	2026-04-03 18:04:22.441Z	176.616° S

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out POLAR BEAR, 17070 on other resources

View POLAR BEAR, 17070 on NASA - NSSDCA Website

View POLAR BEAR, 17070 on Heavens-Above

View POLAR BEAR, 17070 on Keep Track

View POLAR BEAR, 17070 on Celestrak

View POLAR BEAR, 17070 on Gunter's Space Page

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

POLAR BEAR, 17070

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-04-02T06:40:00.526Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #88 in the year 1986 (1986-11-14 UTC)

POLAR BEAR Visibility forecast

Co-orbital & Co-planar RSOs

Check out POLAR BEAR, 17070 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago