SINOD-D 3, 40977
Orbit data source: Space-Track
SINOD-D 3, 40977 is a payload satellite owned by SRI (US) in LEO that was launched on Thu, 08 Oct 2015 UTC via an ATLAS V 401 launch vehicle from the Air Force Western Test Range (AFWTR). 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
40977 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
SRI
Mission
Operational Commercial Technology
Bus & Motor
CUBESAT 2U, Unknown motor
Mass
2 kg wet, 2 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.025 m², Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 SINOD-D 3
1 40977U 15058P 26067.87460079 .00007401 00000-0 62915-3 0 9996
2 40977 64.7723 228.8677 0118566 98.4718 262.9855 14.93201375 99776Epoch: 2026-03-08T20:59Z
TLE epoch observation values (Epoch: 2026-03-08T20:59:25.508Z)
Latitude
0.00007°
Longitude
107.43581°
Altitude
601.021 km
Speed
7.554 km/s
True Right ascension
15h 15m 28s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
19:48:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
669.104 km
Perigee altitude
503.95 km
Semi-major axis
6,964.664 km
Eccentricity
0.01186
Inclination
64.7723°
RAAN
228.8677°
Arg. of periapsis
98.4718°
True anomaly
261.63956°
Mean anomaly
262.9855°
Eccentric anomaly
262.31227°
Mean motion
3.73416 °/min
Orbital period
96.41 mins
BSTAR
0.00062915
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SINOD-D 3 Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-03-09 20:00:52.389Z | 14.071° NNE | 2026-03-09 20:02:52.389Z | 48.382° ENE | 14.839° | 2026-03-09 20:04:52.389Z | 80.592° E |
| 6 mins | 2026-03-09 21:39:52.389Z | 308.957° NW | 2026-03-09 21:41:52.389Z | 257.153° W | 36.919° | 2026-03-09 21:45:52.389Z | 167.073° S |
| 6 mins | 2026-03-10 11:42:52.389Z | 177.016° S | 2026-03-10 11:44:52.389Z | 133.669° SE | 32.263° | 2026-03-10 11:48:52.389Z | 47.232° ENE |
| 4 mins | 2026-03-10 13:22:52.389Z | 280.979° WNW | 2026-03-10 13:24:52.389Z | 318.33° NNW | 17.582° | 2026-03-10 13:26:52.389Z | 352.707° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|