TDRS

NORAD 39504 · COSPAR 2014-004A · ACTIVE

Orbit: #4557 @ 35756 x 35818 km x 4.1165 deg

CURRENT ORBIT DATA

TLE epoch 2026-10-24 04:42 UTC Â· 34.1 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 26297.19649709 -.00000256 00000-0 00000-0 0 09995
2 39504 4.1165 21.0272 0007404 228.9834 172.4594 1.00270487045577

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

4.1165Â°

Period

1436.12 min

Perigee

35756 km

Apogee

35818 km

Eccentricity

0.0007404

RAAN

21.0272Â°

Arg of Perigee

228.9834Â°

Mean Motion

1.00270487 rev/d