TOMORROW-S13, 100890

AKA "OBJECT H" on Space-Track | Orbit data source: Space-Track

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Recently launched and/or uncataloged RSOs may have evolving metadata. Metadata may include the following, but is not limited to: Owner, Manufacturer, Bus, Motor, and Mission.

TOMORROW-S13, 100890 is a satellite in SSO that was launched on Thu, 01 Oct 2026 UTC launched from the Air Force Western Test Range (AFWTR). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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Iframe URL

https://www.satcat.com/sats-embedded/100890?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

100890, 2026-227H

Orbit

SSO

Country

TBD

Related business

None

Manufacturer

Unknown

Mission

Operational spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2026-10-01 (1 week ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Unknown

Shape & HBR

Unknown

Radar Cross Section

RCS unknown

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Last TLE update: 8 hours ago

TLE from 8 hours ago

0 TOMORROW-S13
1 A0890U 26227H   26281.60967628  .00002515  00000-0  13202-3 0  9993
2 A0890  97.4435 351.0004 0001697  42.2387 317.8977 15.16629537  1045

Epoch: 2026-10-08T14:37Z

TLE epoch observation values (Epoch: 2026-10-08T14:37:56.030Z)

Latitude

0°

Longitude

114.27389°

Altitude

518.252 km

Speed

7.605 km/s

True Right ascension

23h 24m 00s

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

17:05:14

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

514.177 km

Perigee altitude

511.838 km

Semi-major axis

6,891.145 km

Eccentricity

0.00017

Inclination

97.4435°

RAAN

351.0004°

Arg. of periapsis

42.2387°

True anomaly

317.88466°

Mean anomaly

317.8977°

Eccentric anomaly

317.89118°

Mean motion

3.79408 °/min

Orbital period

94.88 mins

BSTAR

0.00013202

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Other satellites on launch #227 in the year 2026 (2026-10-01 UTC)

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TOMORROW-S13 Visibility forecast

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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.
6 mins	2026-10-09 05:00:22.999Z	180.701° SSW	2026-10-09 05:03:22.999Z	253.112° W	59.943°	2026-10-09 05:06:22.999Z	337.775° N
5 mins	2026-10-09 18:07:22.999Z	343.531° N	2026-10-09 18:09:22.999Z	293.091° NW	36.6°	2026-10-09 18:12:22.999Z	223.842° SW

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Co-orbital & Co-planar RSOs

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

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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TOMORROW-S13, 100890

AKA "OBJECT H" on Space-Track | Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-10-08T14:37:56.030Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #227 in the year 2026 (2026-10-01 UTC)

TOMORROW-S13 Visibility forecast

Co-orbital & Co-planar RSOs

Check out TOMORROW-S13, 100890 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago