From Wikipedia, the free encyclopedia
European radar imaging satellite
Sentinel-1B
is a European
radar imaging
satellite
launched on 25 April 2016. It is the second of two original satellites in the
Sentinel-1
constellation
, part of the
European Union
's
Copernicus
programme on
Earth observation
. The satellite carries a
C
-
SAR
sensor, capable of providing high-resolution imagery regardless of weather conditions.
The satellite made its first observation on 28 April, capturing a 250 kilometres (160 mi) wide image of the
Austfonna
glacier on
Svalbard
.
[7]
Beginning on December 23, 2021, the spacecraft experienced an anomaly which resulted in a loss of data transmission. On January 10, 2022, the
European Space Agency
confirmed online that a power issue was the root cause of the issue and that initial attempts to fix it had failed. The agency confirmed that efforts to restore the spacecraft's capabilities would continue,
[8]
before announcing on 3 August 2022 that efforts to recover the mission would end. The power issue disabled the use of the satellite's payload, but otherwise the satellite remains operable, thus allowing ESA to perform a controlled deorbit. Sentinel-1B's deorbit is expected to take place once its successor satellite, Sentinel-1C is in orbit.
[9]
See also
[
edit
]
References
[
edit
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Science
| Solar physics
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Planetary science
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Astronomy and
cosmology
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Earth observation
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ISS
spaceflight
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Telecommunications
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Technology
demonstrators
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Cancelled
and proposed
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Failed
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Future missions in
italics
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January
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February
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March
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April
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May
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June
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July
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August
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September
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October
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November
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December
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- Progress MS-04
- Gokturk-1
- Resourcesat-2A
- WGS-8
- HTV-6
/
Kounotori 6
, (
EGG, TuPOD, UBAKUSAT, AOBA-VELOX, STARS, FREEDOM, ITF, Waseda-SAT, OSNSAT,
Tancredo-1
, TechEDSat,
Lemur-2
× 4
)
- Fengyun 4A
- CYGNSS
× 8
- EchoStar 19
- Arase
/ ERG
- TanSat
,
Spark
× 2
- Star One D1
,
JCSAT-15
- SuperView
/ Gaojing-1 01, 02,
Bayi Kepu
1
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Launches are separated by dots ( ? ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights
are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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