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SENTINEL 1B, 41456

Orbit data source: Space-Track

SENTINEL 1B, 41456 is an ESA payload satellite in SSO that was launched on Mon, 25 Apr 2016 UTC via a SOYUZ-ST-A launch vehicle from the French Guiana (FRGUI). 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/41456?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/41456?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

41456, 2016-025A

Orbit

SSO

Country

ESA

Related business

Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs (BE)

Manufacturer

Thales Alenia

Mission

Non-operational Civil Radar Imaging

Bus & Motor

PRIMA, AOCS

Mass

2,157 kg wet, 2,027 kg dry

Launch date (UTC)

2016-04-25 (10 years ago)

Launch vehicle

SOYUZ-ST-A

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 4 Pan, 10.5 m

Radar Cross Section

19.678 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 SENTINEL 1B
1 41456U 16025A   26257.28745021  .00000239  00000-0  24783-4 0  9997
2 41456  98.0871 321.4555 0012891 196.0808 164.0007 14.99459038557134

Epoch: 2026-09-14T06:53Z

TLE epoch observation values (Epoch: 2026-09-14T06:53:55.698Z)

Latitude

0.00004°

Longitude

-135.29649°

Altitude

580.22 km

Speed

7.566 km/s

True Right ascension

21h 25m 49s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

06:28:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

574.541 km

Perigee altitude

556.639 km

Semi-major axis

6,943.727 km

Eccentricity

0.00129

Inclination

98.0871°

RAAN

321.4555°

Arg. of periapsis

196.0808°

True anomaly

164.04135°

Mean anomaly

164.0007°

Eccentric anomaly

164.02103°

Mean motion

3.75106 °/min

Orbital period

95.97 mins

BSTAR

0.000024783

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Other satellites on launch #25 in the year 2016 (2016-04-25 UTC)

MICROSCOPE, 41457

AAUSAT 4, 41460 (Decayed)

OUFTI-1, 41458 (Decayed)

E-STAR-2, 41459 (Decayed)

ASAP-S, 41461 (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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SENTINEL 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.
7 mins	2026-09-14 17:04:25.934Z	20.827° NNE	2026-09-14 17:07:25.934Z	63.064° ENE	56.775°	2026-09-14 17:11:25.934Z	181.965° SSW
6 mins	2026-09-15 03:51:25.934Z	133.071° SE	2026-09-15 03:54:25.934Z	68.662° E	36.945°	2026-09-15 03:57:25.934Z	8.702° NNE

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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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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

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

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Check out SENTINEL 1B, 41456 on other resources

View SENTINEL 1B, 41456 on NASA - NSSDCA Website

View SENTINEL 1B, 41456 on Heavens-Above

View SENTINEL 1B, 41456 on Keep Track

View SENTINEL 1B, 41456 on Celestrak

View SENTINEL 1B, 41456 on Gunter's Space Page

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

SENTINEL 1B, 41456

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-09-14T06:53:55.698Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #25 in the year 2016 (2016-04-25 UTC)

SENTINEL 1B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SENTINEL 1B, 41456 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago