CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0381
USA 19
USA 19 (NORAD 16937) re-entered Earth’s atmosphere on 28 September 1986, after 23 days in orbit.
Official date
NORAD number
16937
International designator
1986-069A
Object type
Spacecraft
Country
United States
Launched
5 Sep 1986Cape Canaveral
Re-entered (UTC)
28 Sep 1986UTC calendar day
Time in orbit
23 days23 days
How it ended
Re-entered (natural decay)
Latitude range
39.1°N to 39.1°SFinal inclination 39.1°
Mass
1,100 kg
Operator
SDIO
Built by
MDAC-HB
Bus
SDIO PAS
Programme
SDIO Delta
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 39.1°, allowed a re-entry anywhere between 39.1°N and 39.1°S.
Life in orbit
23 daysUSA 19’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1986-069
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0381
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0381
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.