thermocalc
Active member
Hi again to all,
going forward to day 7 with the 1st Landmark tracking exercise.
I did P51, I got the T alignment at 142:49:20, I did P52 Nominal -> so I am assuming that at 142:49:20 while in attitude 0-0-0 I should be LVLH Heads up with the SCT pointed to the Earth below.
the PAD I got was this:
If I am correct with the PAD interpretation, once entered in P22 the LMK coordinates the SCT points automatically to that landmark, at time T1 it should appear at the horizon, and at that time I should start the orbital rate, at time T2 the LMK is at 35 degree elevation and from there I should take the marks....am I right up to here?
but it not clear to me is "at what attitude"? 0-0-0 ? but that was supposed to be LVLH at time 142:49:20 .... T - Align PAD value ....
I saw that while still keeping 0-0-0 at time 143:18:04 from the SCT I was looking out into the stars, no Earth below....and more disturbing, at time 142:49:20 and at attitude 0-0-0 I was not LVLH "head up" but almost "+Normal" looking into Orbiter HUD ??? but before, when I did P51, P52 Nominal everything was looking good, all stars were there and no issues to realign the platform...why? did I make something wrong or my LMK Pad interpretation is wrong?
next thing, what is the meaning of the "70 NM South" information in the PAD? what I am suppose to do it?
thanks for any help.
Paolo.
going forward to day 7 with the 1st Landmark tracking exercise.
I did P51, I got the T alignment at 142:49:20, I did P52 Nominal -> so I am assuming that at 142:49:20 while in attitude 0-0-0 I should be LVLH Heads up with the SCT pointed to the Earth below.
the PAD I got was this:
If I am correct with the PAD interpretation, once entered in P22 the LMK coordinates the SCT points automatically to that landmark, at time T1 it should appear at the horizon, and at that time I should start the orbital rate, at time T2 the LMK is at 35 degree elevation and from there I should take the marks....am I right up to here?
but it not clear to me is "at what attitude"? 0-0-0 ? but that was supposed to be LVLH at time 142:49:20 .... T - Align PAD value ....
I saw that while still keeping 0-0-0 at time 143:18:04 from the SCT I was looking out into the stars, no Earth below....and more disturbing, at time 142:49:20 and at attitude 0-0-0 I was not LVLH "head up" but almost "+Normal" looking into Orbiter HUD ??? but before, when I did P51, P52 Nominal everything was looking good, all stars were there and no issues to realign the platform...why? did I make something wrong or my LMK Pad interpretation is wrong?
next thing, what is the meaning of the "70 NM South" information in the PAD? what I am suppose to do it?
thanks for any help.
Paolo.