SBIRS GEO 5 (USA 315), 48618
Orbit data source: Space-Track
SBIRS GEO 5 (USA 315), 48618 is a payload satellite owned by USSF (US) in GEO that was launched on Tue, 18 May 2021 UTC via an ATLAS V 421 launch vehicle from the Air Force Eastern Test Range (AFETR). 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
48618 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
LMSS
Mission
Operational Defense Early Warn
Bus & Motor
A2100, LEROS 1C?
Mass
~4,500 kg wet, ~2,500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 12.5 m
Radar Cross Section
33.213 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 SBIRS GEO 5 (USA 315)
1 48618U 21042A 26171.41057205 -.00000275 00000-0 00000+0 0 9991
2 48618 5.0991 329.1630 0001463 120.1566 60.9118 1.00271391 18808Epoch: 2026-06-20T09:51Z
TLE epoch observation values (Epoch: 2026-06-20T09:51:13.425Z)
Latitude
-0.09062°
Longitude
93.81442°
Altitude
35,783.207 km
Speed
3.075 km/s
True Right ascension
10h 00m 59s
True Declination
0° 05' 26"
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
21:24:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,793.932 km
Perigee altitude
35,781.595 km
Semi-major axis
42,165.9 km
Eccentricity
0.00015
Inclination
5.0991°
RAAN
329.163°
Arg. of periapsis
120.1566°
True anomaly
60.92645°
Mean anomaly
60.9118°
Eccentric anomaly
60.91913°
Mean motion
0.25067 °/min
Orbital period
1,436.16 mins
BSTAR
0
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 #42 in the year 2021 (2021-05-18 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.SBIRS GEO 5 (USA 315) Visibility
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. |
|---|---|---|---|---|---|---|---|
| SBIRS GEO 5 (USA 315) is likely not visible in the next few days. |
Loading historical data...
48618 neighbors
Authenticating...
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 |
|---|