I don't think he can hear us any more.
I'm rather afraid he's lost it completely.
It might be kindest to just let him reply to his own posts from now on. That's when he's happiest.
Or, you know, it could refer to something completely different.
http://www.hq.nasa.gov/alsj/a11/LAM2_CMP-flown.jpg
"Juliet" is correct. You are wrong.I just stumbled across something insanely profound today. Check this out, from the Apollo 11 Voice Transcript;
Time: 05 03 55 23
"CC: Columbia, Houston. Roger. Loud and clear. And if you would like to take it down, we have the latest position of Tranquility Base. Over.
CMP Go ahead.
CC: Roger. It's just west - at west crater, Juliett 0.5, 7.7. Over.
CMP: Understand that it is just west of the crater.
Juliett 0.5 and 7.7. Is that correct?
CC: Columbia, Houston. That is correct.
CMP: Okay. Thank you, Ron."
I intentionally left "Juliett" as Juliett.
Of course the system there is Julian, as in Julius Caesar.
Oh sure, Reed didn't know the difference between a cartesian co-ordinate system and calendar. The only one suffering from that blunder is you.Now I do not know this for an absolute fact, but a pretty close to sure fact. I don't believe a single one of those twenty something fight officers would know a pair of Julian based numbers if they were hit over the head with them. They work with conventional decimal based coordinates, and they worked in the degree/minutes/seconds system, like the Tranquility Base coordinates we are all so very familiar with; 0.6875 degrees north and 23 degrees 26 minutes 00 seconds. So whoever is pumping out these Julian figures, is not a rank and file flight officer like H. David Reed. It cannot possibly be Reed or one of his talented colleagues calculating this crazy stuff, right down there in the TRENCH. Right down there in real-time. Way too much trouble. Reed and his colleagues are engaged with other tasks, technical, but still relatively blue collar.
RA and Dec are co-ordinates in the Equitorial co-ordinate system, not the julian calendar.I went to my Starry Night Software program and cruised over to Tranquility Base. I punched in the date and time of the simulated Eagle launch; 07/21/1969 at 17:54 UT. My software gave 1 hour and 7.8 minutes as the "now" Julian based solution for the right right ascension(RA) of planet earth at that time and date("now", I presume refers to 07/21/1969). I converted to conventional decimal form and found 0.62037
So for the simulated launch, Collins got .5 as the RA and it ultimately proved to be .65. I got a right ascension figure of .620. So I did better with my software than that initial J.5 estimate for the right ascension that appears in the Voice Transcript record. Of course the numbers at this point do not seem to be all that critical anyway. The reason that I say this is because it would seem these are the numbers, the Julian system based numbers, the very numbers "they" are using for the launch. So for now, let's acknowledge that simple fact and see where it leads.
<snip pointless wall of text, now that the incompetence of P1K is revealed>
I really want to see Patrick's working out for how he calculated the "Julian" coordinates.
That would be fun, but I doubt it will happen now that he has been caught with his trolleys round his ankles.
Give us back our eleven days Patrick!I really want to see Patrick's working out for how he calculated the "Julian" coordinates.
Give us back our eleven days Patrick!
No doubt.I just stumbled across something insanely profound today.
I intentionally left "Juliett" as Juliett. Of course the system there is Julian, as in Julius Caesar. Now I do not know this for an absolute fact, but a pretty close to sure fact. I don't believe a single one of those twenty something fight officers would know a pair of Julian based numbers if they were hit over the head with them. They work with conventional decimal based coordinates, and they worked in the degree/minutes/seconds system, like the Tranquility Base coordinates we are all so very familiar with; 0.6875 degrees north and 23 degrees 26 minutes 00 seconds. So whoever is pumping out these Julian figures, is not a rank and file flight officer like H. David Reed. It cannot possibly be Reed or one of his talented colleagues calculating this crazy stuff, right down there in the TRENCH. Right down there in real-time. Way too much trouble. Reed and his colleagues are engaged with other tasks, technical, but still relatively blue collar.
I went to my Starry Night Software program and cruised over to Tranquility Base. I punched in the date and time of the simulated Eagle launch; 07/21/1969 at 17:54 UT. My software gave 1 hour and 7.8 minutes as the "now" Julian based solution for the right right ascension(RA) of planet earth at that time and date("now", I presume refers to 07/21/1969). I converted to conventional decimal form and found 0.62037.
This is from the Apollo Lunar Surface Journal;
"121:08:05 Evans: And when the LM does his P22 on your transponder, well then, that'll be our last shot at the LM's position.
121:08:14 Collins: Rog. Understand. (Pause)
The LM crew will track the Command Module as it passes over the landing site for the last time prior to launch and, with the Command Module orbit well known, in principle the tracking data will help pin down the landing site. With the information available a half hour before launch - including the crew's descriptions of West Crater and Little West Crater and the returns from the laser reflectometer - at 123:55:23, Ron gives Mike a final LM location of J.5/7.7, which is only about 200 meters from the actual landing site at J.65/7.54. Mike will be too busy during that pass over the landing site to look for the descent stage."
So for the simulated launch, Collins got .5 as the RA and it ultimately proved to be .65. I got a right ascension figure of .620. So I did better with my software than that initial J.5 estimate for the right ascension that appears in the Voice Transcript record. Of course the numbers at this point do not seem to be all that critical anyway. The reason that I say this is because it would seem these are the numbers, the Julian system based numbers, the very numbers "they" are using for the launch. So for now, let's acknowledge that simple fact and see where it leads.
So the astronauts are sighting the earth! That is where the Julian figures come from. Which makes sense, because if one determines the right ascension and the declination for the earth on 07/21/1969 at 17:54 UT, the time of the simulated Eagle launch, then one would know the position of the Eagle, EXACTLY. Well exactly if you had good equipment. And in the pretend Apollo world, they did have good pretend equipment. Well it was real equipment, but they actually did not sight the earth and determine its right ascension and declination from the surface of the moon. So they have good pretend precision. Let's leave it at that.
It's really impressive that Patrick managed to achieve such high precision when he was navigating using a calendar which was superceded before Columbus crossed the atlantic. His maths skills plainly exceed even his medical prowess.
You just know he's going to wave it away as if he'd never even said it, though. As predictable and inexorable as the phases of the moon is our Patrick.
I wonder if, when he bores of repeating himself, Patrick will tackle other topics.
Or Columbus never discovered America.
To the rational folks on the board, could you provide a reference for me? No matter how I phrase the question, I can't find the estimated landing site coordinates that were in play on the night/morning in question. I keep hitting the post-mission report or second-hand references to it. I'm particularly interested in the geologists' assessment of the location. I'm asking so I can finish out a small matrix to respond to our friend(s) "Patrick's" assertations a couple of posts back. Thanks in advance.