1970-046A
The first Program 720 satellite was launched on 1970 Jun 19 into geostationary transfer orbit by Atlas Agena D. An integral liquid bipropellant apogee motor, probably using a Rocketdyne thruster of around 440N thrust, was used for the first time ever to circularize the orbit and make the inclination equatorial, after which hydrazine thrusters adjusted it to become geostationary. The large antenna was deployed and the mission was a complete success.
| Rhyolite 1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1970 Jun 19 | 1137 | Launch by Atlas Agena D | CC |
| 1139 | Atlas BECO | ||
| 1139 | Atlas booster sep | ||
| 1142 | Atlas SECO | ||
| 1143 | Atlas sep | ||
| 1143 | Agena burn 1 | ||
| 1144? | Fairing | ||
| 1146? | Agena MECO-1 | 178 x 180 x 28.5 ? | |
| 1230? | Agena MES-2 | ||
| 1231? | Agena MECO-2 | 178 x 33685 x 28.2 | |
| 1233? | Agena sep | ||
| LAM-1 | |||
| 1970 Jun | GEO, tests over US | ||
| 1970 Aug ? | Data to Pine Gap | GEO 105E | |
| 1971 | Over India/Pakistan? | ||
| 1971 | GEO over USSR | ||
| 1973 | GEO over China/Vietnam | ||
| 1975 | Still operational | ||
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