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ALSAT 1B, 41785

Orbit data source: Space-Track

ALSAT 1B, 41785 is a payload satellite owned by ASAL (DZ) in SSO that was launched on Mon, 26 Sep 2016 UTC via a PSLV launch vehicle from the Sirharikota (SRI). 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 URL

https://www.satcat.com/sats-embedded/41785?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

41785, 2016-059C

Orbit

SSO

Country

DZ / ALG

Related business

Algerian Space Agency (DZ)

Manufacturer

SSTL (Astrium)

Mission

Operational Civil Imaging

Bus & Motor

SSTL-100, Unknown motor

Mass

103 kg wet, 103 kg dry

Launch date (UTC)

2016-09-26 (10 years ago)

Launch vehicle

PSLV

Launch site

Sirharikota (SRI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Ant, 3.3 m

Radar Cross Section

0.862 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 ALSAT 1B
1 41785U 16059C   26172.52187030  .00000186  00000-0  36888-4 0  9992
2 41785  97.7752 181.0987 0008425 204.3396 155.7415 14.72277021521216

Epoch: 2026-06-21T12:31Z

TLE epoch observation values (Epoch: 2026-06-21T12:31:29.593Z)

Latitude

-0.00008°

Longitude

83.50447°

Altitude

662.226 km

Speed

7.523 km/s

True Right ascension

12h 04m 23s

True Declination

0° 00' 00"

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

21:36:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

656.776 km

Perigee altitude

644.932 km

Semi-major axis

7,028.991 km

Eccentricity

0.00084

Inclination

97.7752°

RAAN

181.0987°

Arg. of periapsis

204.3396°

True anomaly

155.78113°

Mean anomaly

155.7415°

Eccentric anomaly

155.76132°

Mean motion

3.68302 °/min

Orbital period

97.75 mins

BSTAR

0.000036888

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Other satellites on launch #59 in the year 2016 (2016-09-26 UTC)

PSLV DEB, 41792

PRATHAM, 41783

ALSAT 2B, 41786

CANX-7, 41788 (Decayed)

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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.

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ALSAT 1B 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.
8 mins	2026-06-22 13:33:25.899Z	9.378° NNE	2026-06-22 13:37:25.899Z	276.386° WNW	44.48°	2026-06-22 13:41:25.899Z	198.256° SSW
7 mins	2026-06-23 00:32:25.899Z	162.124° S	2026-06-23 00:35:25.899Z	111.403° ESE	44.57°	2026-06-23 00:39:25.899Z	349.965° N

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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 ALSAT 1B, 41785 on other resources

View ALSAT 1B, 41785 on NASA - NSSDCA Website

View ALSAT 1B, 41785 on Heavens-Above

View ALSAT 1B, 41785 on Keep Track

View ALSAT 1B, 41785 on Celestrak

View ALSAT 1B, 41785 on Gunter's Space Page

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

ALSAT 1B, 41785

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-06-21T12:31:29.593Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #59 in the year 2016 (2016-09-26 UTC)

ALSAT 1B Visibility forecast

Co-orbital & Co-planar RSOs

Check out ALSAT 1B, 41785 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago