CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2000-0135
LACE (USA 51)
LACE (USA 51) (NORAD 20496) re-entered Earth’s atmosphere on 24 May 2000, after 10 years, 3 months in orbit.
Official date
NORAD number
20496
International designator
1990-015A
Object type
Spacecraft
Country
United States
Launched
14 Feb 1990Cape Canaveral
Re-entered (UTC)
24 May 2000UTC calendar day
Time in orbit
10 years, 3 months3,752 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
1,440 kg
Operator
SDIO
Built by
NRL
Bus
LACE
Programme
SDIO Delta
Where it came down
Not on recordNo position was recorded for this re-entry. Its final orbit is not on record.
Life in orbit
10 years, 3 monthsLACE (USA 51)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1990-015
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2000-0135
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2000-0135
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.