JD 1

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite JD 1 at a glance.

Uptime

15237

Days in orbit

Revolutions

≈ 13.7

Per day

Orbit

LEO

Low Earth Orbit

Inclination

63.3

Latest

Satellite identification and parameters

Extended collection of information and parameters for JD 1.

Object identification

Identified? True

Debris? False

Object name: JD 1

International designator: 1984-012C

Object number (NORAD): 14728

Object ID (CCSDS): 14728

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 104.874 minutes

Inclination: 63.3094 deg

SMA: 7366.677 km

Apoapsis: 1555.427 km

Periapsis: 421.657 km

RAAN: 329.7724 deg

Eccentricy: 0.0769526

Argument of periapsis: 124.3895 deg

Mean anomaly: 243.2385 deg

Mean motion: 13.73078343 rev/day

Mean motion (dot): 0.00003153 rev/day2

B* drag term: 0.00036269 1/REarth

Two-line elements (TLE)

Creation date: Oct. 23, 2025, 10:16 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 23, 2025, 12:51 p.m. UTC

TLE line 0: 0 JD 1

TLE line 1: 1 14728U 84012C 25296.53590296 .00003153 00000-0 36269-3 0 9991

TLE line 2: 2 14728 63.3094 329.7724 0769526 124.3895 243.2385 13.73078343311135

Live tracking on map

Real-time ground track for satellite JD 1.

In-orbit conjunctions

A list of the most updated potential collisions computed for object JD 1.

Target Orbit TCA Probability of collision Miss distance Type
SL-8 DEB LEO 2024-10-11 11:40:37 0.0001435013 85.0 (m) DEBRIS

Associated space launch

The Parcae satellites were passive ELINT satellites. MSD satellites were dispensers of triplets of ocean surveillance satellites.

JD 1 was lifted into orbit during the mission ‘Atlas H | Parcae 7A,B,C & MSD 7’, on board a Atlas H space rocket.

The launch took place on Feb. 5, 1984, 6:44 p.m. from Space Launch Complex 3E.

For more information about the launch, click the button.

Launch to space Atlas H | Parcae 7A,B,C & MSD 7
Atlas H | Parcae 7A,B,C & MSD 7

Agency: N/A

Status: Launch Successful

Launch date: Feb. 5, 1984, 6:44 p.m. UTC

Rocket: Atlas H

Launch pad: Space Launch Complex 3E

Location: Vandenberg SFB, CA, USA

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