[17:04:51] NASSP Logging has been started by thewonderidiot
[17:11:43] <astronauthen96__> hello again
[17:14:26] <astronauthen96__> @indy91 in your opinion do you think the apollo 10 rendezvous is much different from apollo 7?
[17:15:39] <indy91> thewonderidiot, yeah, every 10 calculations or so it randomly had a -nan(ind)
[17:16:13] <indy91> acos(dotp(unit(R), unit(R_J)))
[17:16:24] <indy91> with R and R_J being exactly identical on the first timestep
[17:16:29] <indy91> iteration*
[17:16:36] <thewonderidiot> yeah that is super annoying
[17:16:44] <indy91> well, a propagated state vector with a dt of 0
[17:16:49] <indy91> on the first iteration
[17:17:12] <indy91> so a lot of calculations going on and the output being not simply set identical to the input
[17:17:24] <indy91> hence the random issue, because floating point
[17:18:10] <indy91> astronauthen96__, I'd say the inputs and procedures of the Apollo 10 rendezvous are easier than on Apollo 7
[17:18:29] <indy91> the major advantage is, the rendezvous radar takes marks automatically
[17:18:51] <indy91> so the very time consuming sextant marks, which are also not easy to get super precise, doesn't have to be done
[17:19:37] <astronauthen96__> yeah, i don't think i will get it right for my first attempt
[17:19:45] <indy91> on the other hand, you have to use P32, P33 and P34. On Apollo 7 it was just P34 for TPI. So a few more onboard programs to learn.
[17:20:49] <astronauthen96__> i think those are for csi, cdh and tpi
[17:21:22] <indy91> correct
[17:21:35] <astronauthen96__> i just remembered from those maneuver pads in the flight plan
[17:21:40] <indy91> the programs for CSI and CDH weren't added to the CMC until Apollo 10
[17:21:54] <indy91> not even Apollo 9 had them
[17:22:24] <indy91> which would have been useful to rescue the LM
[17:22:37] <indy91> had to rely more on ground calculated maneuvers I guess
[17:23:06] <astronauthen96__> is that what you are working on now for the mcc's
[17:23:34] <indy91> yeah, for the mission control feature the ground calculated rendezvous maneuvers are basically complete
[17:24:09] <indy91> in the timeline I am just after the insertion burn.
[17:24:21] <indy91> so from here on the rendezvous is all onboard calculated
[17:24:34] <astronauthen96__> with the dsky?
[17:24:47] <indy91> yes
[17:24:53] <indy91> although there are backup charts
[17:24:55] <indy91> and the AGS