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SENTINEL-1D, 66315

Orbit data source: Space-Track

SENTINEL-1D, 66315 is an ESA payload satellite in SSO that was launched on Tue, 04 Nov 2025 UTC via an ARIANE 62 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/66315?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/66315?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66315, 2025-251A

Orbit

SSO

Country

ESA

Related business

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

Manufacturer

Thales Alenia

Mission

Operational Civil Radar Imaging

Bus & Motor

PRIMA, AOCS

Mass

2,157 kg wet, 2,027 kg dry

Launch date (UTC)

2025-11-04 (8 months ago)

Launch vehicle

ARIANE 62

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: 21 hours ago

TLE from 21 hours ago

0 SENTINEL-1D
1 66315U 25251A   26170.97844246  .00000106  00000-0  32101-4 0  9994
2 66315  98.1826 178.2989 0001369  88.7599 271.3758 14.59197060 33131

Epoch: 2026-06-19T23:28Z

TLE epoch observation values (Epoch: 2026-06-19T23:28:57.428Z)

Latitude

0.00002°

Longitude

-82.14005°

Altitude

698.729 km

Speed

7.507 km/s

True Right ascension

11h 53m 11s

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

07:18:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

693.817 km

Perigee altitude

691.881 km

Semi-major axis

7,070.986 km

Eccentricity

0.00014

Inclination

98.1826°

RAAN

178.2989°

Arg. of periapsis

88.7599°

True anomaly

271.36012°

Mean anomaly

271.3758°

Eccentric anomaly

271.36796°

Mean motion

3.65025 °/min

Orbital period

98.62 mins

BSTAR

0.000032101

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Other satellites on launch #251 in the year 2025 (2025-11-04 UTC)

No other RSOs were in this launch

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SENTINEL-1D 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	2026-06-21 00:17:32.564Z	154.901° SSE	2026-06-21 00:21:32.564Z	53.625° ENE	42.555°	2026-06-21 00:25:32.564Z	353.231° N
4 mins	2026-06-21 12:18:32.564Z	69.277° E	2026-06-21 12:20:32.564Z	100.575° ESE	16.794°	2026-06-21 12:22:32.564Z	128.418° SE
7 mins	2026-06-21 13:54:32.564Z	354.031° N	2026-06-21 13:57:32.564Z	300.592° NW	34.614°	2026-06-21 14:01:32.564Z	220.501° SW

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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 SENTINEL-1D, 66315 on other resources

View SENTINEL-1D, 66315 on NASA - NSSDCA Website

View SENTINEL-1D, 66315 on Heavens-Above

View SENTINEL-1D, 66315 on Keep Track

View SENTINEL-1D, 66315 on Celestrak

View SENTINEL-1D, 66315 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-1D, 66315

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-06-19T23:28:57.428Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #251 in the year 2025 (2025-11-04 UTC)

SENTINEL-1D Visibility forecast

Co-orbital & Co-planar RSOs

Check out SENTINEL-1D, 66315 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago