Apollo 11 6 hour P23
- Thread starter Kram45
- Start date
That should be noted in the flightplan. Without taking a look at it: when you are this close to earth, almost all marks will be done as "earth near horizon", i.e. 00110 in R3 of V70.
V70 is structured like this:
000XX - star code
00X00 - landmark code
00XX0 - horizon code
This is all octal, i.e. no + or - and leading 0's can be omitted. The star code is self-explanatory, landmark can be 0 (no landmark), 1 (earth landmark) or 2 (moon landmark). The first digit of the horizon code is analog to landmark: 0 for no horizon, 1 for earth horizon, 2 for lunar horizon. The second digit denotes whether the near horizon (1) is used or the far horizon (2). Note that for horizon sightings, R2 has to be 0 and R3 should contain something useful; for landmark sightings it's the other way round (although the program should look at R2 first and ignore the data in R3; however, if the manual says so...
)
V70 is structured like this:
000XX - star code
00X00 - landmark code
00XX0 - horizon code
This is all octal, i.e. no + or - and leading 0's can be omitted. The star code is self-explanatory, landmark can be 0 (no landmark), 1 (earth landmark) or 2 (moon landmark). The first digit of the horizon code is analog to landmark: 0 for no horizon, 1 for earth horizon, 2 for lunar horizon. The second digit denotes whether the near horizon (1) is used or the far horizon (2). Note that for horizon sightings, R2 has to be 0 and R3 should contain something useful; for landmark sightings it's the other way round (although the program should look at R2 first and ignore the data in R3; however, if the manual says so...
)
