Kayhan Space Satcat

Watchlists

Notifications
No new unread notifications...

Showing default

UMBRA-11, 66748

Orbit data source: Space-Track

UMBRA-11, 66748 is a payload satellite owned by Umbra Labs (US) in SSO that was launched on Fri, 28 Nov 2025 UTC via an FALCON 9 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/66748?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/66748?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

66748, 2025-276CL

Orbit

SSO

Country

US

Related business

Umbra Labs (US)

Manufacturer

Umbra Labs

Mission

Operational Commercial Radar Imaging

Bus & Motor

ESPASAT?, Unknown motor

Mass

84 kg wet, 79 kg dry

Launch date (UTC)

2025-11-28 (6 months ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan + 1 Dish, 2.0 m

Radar Cross Section

6.513 m²

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 UMBRA-11
1 66748U 25276CL  26144.91565097  .00020423  00000-0  80656-3 0  9991
2 66748  97.4204 219.7086 0003363  85.4636 274.6986 15.25542578 26946

Epoch: 2026-05-24T21:58Z

TLE epoch observation values (Epoch: 2026-05-24T21:58:32.243Z)

Latitude

-0.00006°

Longitude

7.56332°

Altitude

492.066 km

Speed

7.619 km/s

True Right ascension

14h 38m 50s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

14:11:12

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

488.424 km

Perigee altitude

483.807 km

Semi-major axis

6,864.253 km

Eccentricity

0.00034

Inclination

97.4204°

RAAN

219.7086°

Arg. of periapsis

85.4636°

True anomaly

274.66019°

Mean anomaly

274.6986°

Eccentric anomaly

274.6794°

Mean motion

3.81639 °/min

Orbital period

94.33 mins

BSTAR

0.00080656

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 #276 in the year 2025 (2025-11-28 UTC)

OBJECT CX, 66759

FOSSASAT2E22, 66779

OBJECT DD, 66765

OBJECT CJ, 66746

BLACK KITE-1, 66741

OBJECT AB, 66691

OBJECT CZ, 66761

OBJECT CY, 66760

OBJECT L, 66676

OBJECT R, 66681

OBJECT C, 66668

OBJECT DP, 66775

OBJECT AA, 66690

IHI-SAT2, 66772

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.

Click here to try in Sandbox

UMBRA-11 Visibility forecast

Loading observer location...
Set 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.
5 mins	2026-05-25 17:26:29.021Z	36.529° NE	2026-05-25 17:28:29.021Z	84.6° E	31.503°	2026-05-25 17:31:29.021Z	164.027° S

Items per page:

1–1 of 1 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

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

Check out UMBRA-11, 66748 on other resources

View UMBRA-11, 66748 on NASA - NSSDCA Website

View UMBRA-11, 66748 on Heavens-Above

View UMBRA-11, 66748 on Keep Track

View UMBRA-11, 66748 on Celestrak

View UMBRA-11, 66748 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

Documentation

Go to standalone docs website

Showing up to 5 results

|