NORAD 43618
SSTL S1-4
Time
- Local time
- -
- -
Position
- Latitude
- -
- Longitude
- -
- Altitude
- -
Speed
- Miles per hour
- -
- Kilometers per second
- -
- Miles per second
- -
From your location
- Azimuth
- -
- Elevation
- -
- Right ascension
- -
- Declination
- -
- Local sidereal time
- -
Sunlight
- Day / night
- -
Identity
- NORAD ID
- 43618
- International designator
- 2018-071A
- Launch date
- Sep 16, 2018
- Launch site
- SIRHARIKOTA
- Radar size (RCS)
- Large (over 1 m²)
Radio
- Uplink
- -
- Downlink
- 2,240.000 MHz · BPSK
- Beacon
- -
- Mode
- BPSK
Active transmitters from SatNOGS DB, licensed CC BY-SA 4.0.
Your station
- Grid locator
- -
Live
- Azimuth
- -
- Elevation
- -
- Range
- -
- Range rate
- -
- Naked-eye visibility
- -
- Sub-satellite grid
- -
- Footprint diameter
- -
Upcoming passes
Next 48 h · your local timeUse your location to predict passes.
Mutual visibility
With another station · next 48 hUse your location to find mutual windows.
Transmitters
Nominal · add location for DopplerS-band telemetry
Transmitter · BPSK
- Downlink
- 2,240.000 MHz
- CTCSS
- -
- Baud
- 50,000
Recent receptions
SatNOGS Network-
Orbit data
- TLE epoch
- 2026-11-01 21:26:13 UTC
- TLE age
- -
Radio data from SatNOGS DB and SatNOGS Network, licensed CC BY-SA 4.0.
Its orbit in 3D
Goes round Earth once every 96 minutes, on an orbit tilted 97.5° from the equator, between 622 and 653 km up. Earth is drawn to scale.
Drag to turn · pinch to zoom · it moves live
About SSTL S1-4
SSTL S1-4 is a satellite from the United Kingdom, launched on Sep 16, 2018 from Sirharikota.
It circles Earth every 96 minutes (15.0 times a day), between 560 and 577 km up, on an orbit tilted 97.5° to the equator, so its path covers latitudes up to 83° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
SSTL-S1 4 · Earth observation satellite
- Operated by
- DMC International Imaging
- Built by
- Surrey Satellite Technology
- Mass
- 447 kg
Names and facts: Wikidata (CC0).
Orbit height over the past year
Over the last 21 days its lowest point went from 562 km to 560 km. Sudden rises are engine burns that lift the orbit; slow declines are drag from the thin upper atmosphere.
From Space-Track element sets, one point a day.