TDRS

NORAD 39504 · COSPAR 2014-004A · ACTIVE

Orbit: #4578 @ 35756 x 35813 km x 4.1409 deg

CURRENT ORBIT DATA

TLE epoch 2026-11-14 03:36 UTC Â· 18.8 h old

Orbit history

// altitude & velocity from orbital-data archive

Trend: —

Altitude —

Velocity —

Next visible passes

// click to check

Current TLE

// onowactive

TDRS 12
1 39504U 14004A 26318.15020267 -.00000258 00000-0 00000-0 0 09999
2 39504 4.1409 21.3525 0006733 236.0815 168.8680 1.00278070045789

TLE data & history 🚀 Launch manifest

Spacecraft info

// UCS Satellite Database

Launch date

January 23rd 2014

Spacecraft age

12 years, 9 months

Distance travelled

—

Expected lifetime

—

Operator

National Aeronautics and Space Administration (NASA)

Purpose

Communications

Orbit class

GEO

Launch site

Cape Canaveral

Launch vehicle

Atlas 5

Contractor

Boeing Satellite Systems

Launch mass

3,454 kg

Power

3,500 (EOL) W

Orbit elements

// from current orbital elements

Inclination

4.1409Â°

Period

1436.01 min

Perigee

35756 km

Apogee

35813 km

Eccentricity

0.0006733

RAAN

21.3525Â°

Arg of Perigee

236.0815Â°

Mean Motion

1.0027807 rev/d