TDRS

NORAD 21639 · COSPAR 1991-054B · ACTIVE

Orbit: #12888 @ 35745 x 35827 km x 14.0578 deg

CURRENT ORBIT DATA

TLE epoch 2026-10-12 05:55 UTC Â· 29.9 h old

Orbit history

// altitude & velocity from orbital-data archive

Trend: —

Altitude —

Velocity —

Next visible passes

// click to check

Current TLE

// onowactive

TDRS 5
1 21639U 91054B 26285.24668675 .00000081 00000-0 00000-0 0 09996
2 21639 14.0578 352.9014 0009670 254.5132 54.5656 1.00273980128884

TLE data & history 🚀 Launch manifest

Spacecraft info

// UCS Satellite Database

Launch date

August 2nd 1991

Spacecraft age

35 years, 2 months

Distance travelled

—

Expected lifetime

—

Operator

SES S.A.

Purpose

Communications

Orbit class

GEO

Launch site

Cape Canaveral

Launch vehicle

Space Shuttle (STS 43)

Contractor

TRW Defense and Space Systems Group

Launch mass

3,180 kg

Power

1,800.00 W

Orbit elements

// from current orbital elements

Inclination

14.0578Â°

Period

1436.07 min

Perigee

35745 km

Apogee

35827 km

Eccentricity

0.000967

RAAN

352.9014Â°

Arg of Perigee

254.5132Â°

Mean Motion

1.0027398 rev/d