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JD 1, 14728

Orbit data source: Space-Track

JD 1, 14728 is an American payload satellite in LEO that was launched on Sun, 05 Feb 1984 UTC via an ATLAS H launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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<iframe src="https://www.satcat.com/sats-embedded/14728?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/14728?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

14728, 1984-012C

Orbit

LEO

Last TLE update

13 hours ago

Origin

National Reconnaissance Office (US)

Manufacturer

Martin Marietta

Mission

Defense Sigint

Bus & Motor

NOSS SSU, Unknown motor

Mass

200 kg wet, 200 kg dry

Launch date (UTC)

1984-02-05 (41 years ago)

Launch vehicle

ATLAS H

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Poly, 0.5 m

Radar Cross Section

0.339 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 13 hours ago

0 JD 1
1 14728U 84012C   25197.80912386  .00002291  00000-0  26022-3 0  9997
2 14728  63.3058 239.4791 0779686 122.7252 245.1418 13.72030357297686

Epoch: 2025-07-16T19:25Z

TLE epoch observation values (Epoch: 2025-07-16T19:25:08.301Z)

Latitude

0.00001°

Longitude

13.31055°

Altitude

1,270.746 km

Speed

7.084 km/s

True Right ascension

15h 57m 54s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-23.35083°

Longitude

-155.71645°

Altitude

889.659 km

Speed

7.462 km/s

Apparent Right ascension

06h 35m 06s

Apparent Declination

-35° 48' 39"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:16:15

Azimuth

95.645° ESE

Elevation

-58.202°

Doppler factor

Orbital elements

Apogee altitude

1,565.675 km

Perigee altitude

416.536 km

Semi-major axis

7,369.243 km

Eccentricity

0.07797

Inclination

63.3058°

RAAN

239.4791°

Arg. of periapsis

122.7252°

True anomaly

Unknown

Mean anomaly

245.1418°

Eccentric anomaly

Unknown

Mean motion

3.43091 °/min

Orbital period

104.93 mins

BSTAR

0.00026022

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Other satellites on launch #12 in the year 1984 (1984-02-05 UTC)

OPS 8737, 14690

ATLAS H R/B, 14691 (Decayed)

JD 2, 14729

OPS 8737 DEB, 14761 (Decayed)

JD 3, 14795

OPS 8737 DEB, 14964 (Decayed)

OPS 8737 DEB, 14969 (Decayed)

OPS 8737 DEB, 15347

OPS 8737 DEB, 15348

OPS 8737 DEB, 15349

OPS 8737 DEB, 19441 (Decayed)

OPS 8737 DEB, 28529

JD 1 Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-17 13:28:02.245Z	324.42° NNW	2025-07-17 13:31:02.245Z	251.057° W	44.799°	2025-07-17 13:34:02.245Z	149.409° SSE
6 mins	2025-07-18 03:02:02.245Z	147.504° SSE	2025-07-18 03:05:02.245Z	116.986° SE	17.168°	2025-07-18 03:08:02.245Z	81.044° E
9 mins	2025-07-18 04:48:02.245Z	222.539° SW	2025-07-18 04:53:02.245Z	284.165° WNW	42.788°	2025-07-18 04:57:02.245Z	26.338° NE

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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Authenticating...

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Check out JD 1, 14728 on other resources

View JD 1, 14728 on NASA - NSSDCA Website

View JD 1, 14728 on Heavens-Above

View JD 1, 14728 on Keep Track

View JD 1, 14728 on Celestrak

View JD 1, 14728 on Gunter's Space Page

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