(SR-52) Track Oscar

[SlideRule]

An excerpt from Track OSCAR With Your SR-52, 73 magazine {NOV 1977}, pgs. 58-61

"
   The program listed in Table 1 will do the following for you, while you QSO, have breakfast, mow the lawn, go shopping, etc.:
 (1) calculate the position of OSCAR 6 or 7 at the time intervals you select;
 (2) determine whether OSCAR is above the horizon;
 (3) print out the time (local or GMT) to the minute, azimuth (bearing), and elevation
       angle to the nearest degree only when OSCAR is above the horizon;
 (4) do the above for all the passes (northbound and southbound) for an entire day
      (longer, if desired); and, finally,
 (5) do this wherever you are in the world …
…
… about those of you with the bare bones SR-52? Here's how: First , put in the program and data registers, just as indicated earlier, but with 3 simple changes. Change program steps 185, 205 and 209 from prt (98) to HLT (81). The calculator is used in the same way, except that paper and pencil are used instead of the automatic printer.
   After T_x and λ_x are entered as above, the calculator will halt and display the first time the satellite is in your range. After writing it down, press RUN, and the calculator will halt with the azimuth displayed. Write it, press RUN, and the calculator will halt with elevation displayed. Write it, press RUN, and a new time will be displayed when the calculator halts, etc., etc … "

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[Maximilian Hohmann]

Hello!

That's interesting. A few pages onward (https://archive.org/details/73-magazine-...3/mode/2up) there is also an article about tracking Oscar Satellites with the HP-67.

It should be possible to use these programs with any spacecraft (i.e. the ISS which would make it easy to verify the function) by replacing the orbital parameters.

Regards
Max

[SlideRule]

(10-14-2020 02:45 PM)Maximilian Hohmann Wrote:  A few pages onward (https://archive.org/details/73-magazine-...3/mode/2up) there is also an article about tracking Oscar Satellites with the HP-67

Yes, my internet went down, so the follow-on posting for the HP-67/97 was delayed. For convenience, the post is now up in the appropriate location. Thanks for the comment.

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