- Mar 23, 2010
- Reaction score
Has a direct ascent to such a transfer orbit ever been done before?
Whether they go today or tomorrow, I think there will still be a minimum coast of time ~20 mins in parking orbit at ~190km alt, so I'm not sure you could call it a direct ascent.I think they are doing a direct assent to the transfer orbit. The payload is tiny compared to the F9 and with only 600m/s dV, they don't have the dV budget for a parking orbit.
Well, it looks like those guys are trying to launch today after all..... :shifty: (but note that the official forecast is still 40% go)
Weather forecast for Titusville, Florida on February 9, 2015 (6 p.m.)
Partly cloudy early then heavy thunderstorms this afternoon. High 24C. Winds SSW at 10 to 15 km/h. Chance of rain 100%.
Time|Temps|Dew Point|Relative Humidity|Precip|Snow|Cloud cover|Pressure|Wind|Weather
6 PM|18°C|17°C|93%|100%|0%|100%|1008 hPa|6 km/h NE|Thunderstorm
SpaceX is still tracking towards a 6:03pm ET liftoff of DSCOVR, but unfortunately we will not be able to attempt to recover the first stage of the Falcon 9. The drone ship was designed to operate in all but the most extreme weather. We are experiencing just such weather in the Atlantic with waves reaching up to three stories in height crashing over the decks. Also, only three of the drone ship’s four engines are functioning, making station-keeping in the face of such wave action extremely difficult. The rocket will still attempt a soft landing in the water through the storm (producing valuable landing data), but survival is highly unlikely.