1983-063A
The Transit O-16 satellite, originally built by RCA, was modified for auroral research and studies of ionospheric irregularities, and renamed Hilat. It was launched in Jun 1983 as Space Test Program flight P83-1.
Hilat used a Scout D-1 launch vehicle with a Castor IIA second stage (S/N 795M) originally assigned as a strapon in the USAF Thor inventory.
The AIM had two visible-light photometers and a vacuum UV Ebert-Fastie spectrometer with focal length of 1m, a parabolic telescope, and a PMT detector.
The Hilat satellite was built by APL for the Defense Nuclear Agency. Principal investigators for the beacon experiment were M. Cousins and C. Rino of SRI International (Menlo Park). Control was by the Naval Astronautics Group.
| Hilat | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1983 Jun 27 | 1537:08 | Launch by Scout | V SLC5 |
| T+1:23 St 1 burnout | |||
| T+1:28 St 1 sep | |||
| T+1:35 St 2 burn 39s | |||
| T+2:14 St 2 burnout | |||
| T+2:35 Fairing sep | |||
| T+2:36 St 2 sep | |||
| T+2:37 St 3 burn | |||
| T+3:10 St 3 burnout | |||
| T+9:49 Spinup | |||
| 1548:19 | T+10:06/11:11 St 3 sep | ||
| 1548:58 | St 4 burn 33s | -4740 x 831 x 80.9 | |
| 1549:31 | St 4 burnout | ||
| 1553:46 | St 4 sep | ||
| 101.0 770 x 837 x 82.0 | |||
| 1983 Jul 3 | Gravity boom deploy | ||
| 1983 Jul 11 | Doppler transmitters used for DMA gravity model | ||
| 1983 Jul 22 | Auroral obs from Kiruna | ||
| 1983 Jul 23 | Auroral mapper experiment failed | ||
| 1983 Aug 26 | Control to NAVASTROGRU | ||
| 1989 Jun 5 | end of mission | ||
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