You don't need no stinkin' computer...
I updated my Mobile LEO tracking site to show graphically how PSAT2 orbit works. http://aprs.org/MobileLEOtracking.html
Easy to remember. 5 minutes later per day, but a new orbit an hour and a half earlier every other day. (This is approximate... time will tell... might change as we see the effect of the elliptical orbit)
If you are in the wilderness, just monitor 145.825 and when you hear PSAT2, then you can easily guess all orbits in the future...
Bob, WB4APR
-----Original Message----- From: Robert Bruninga bruninga@usna.edu Sent: Thursday, June 27, 2019 12:13 PM To: 'amsat bb' amsat-bb@amsat.org Cc: Robert Bruninga bruninga@usna.edu; 'Steve Dimse' sdimse@gmail.com Subject: PSAT2 is coming to Northern Latitudes!!
PSAT2 is coming to the Northern hemisphere!
After reviewing the orbit, it is somewhat time synchronous, meaning each orbit time (at mid northern latitudes) is just 5 minutes later each night. But then a NEW earlier orbit appears 90 minutes earlier every other day.
So, by the 4th of july, one week from now, PSAT2 first pass will be as early as 4 PM local time... (in the Northern Hemisphere mid latitudes)
And the Apogee moves rapidly, In just two weeks, Apogee will be over the northern hemisphere giving higher latitudes much better access. At launch it was the middle of the night and perigee was in the Northern hemisphere making it only visible for lower latitudes.
So things will improve for Northern Hemisphere .... (and then two weeks get worse, etc)...
24 Hour telemetry plots (links to FINDU.COM) are now available on the http://aprs.org/psat2.html page.
Bob, WB4APR
Also, for tracking PSAT2 this site looks good: http://amsat.org.ar/pass?satx=psat2
Will PSAT2 eventually end up on TLE download site: https://www.amsat.org/tle/current/nasa.all%C2%A0 73
Robert MacHale. KE6BLR Ham Radio License. http://spaceCommunicator.club/igates . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration
On Thursday, June 27, 2019, 1:11:59 PM PDT, Robert Bruninga via AMSAT-BB amsat-bb@amsat.org wrote:
You don't need no stinkin' computer...
I updated my Mobile LEO tracking site to show graphically how PSAT2 orbit works. http://aprs.org/MobileLEOtracking.html
Easy to remember. 5 minutes later per day, but a new orbit an hour and a half earlier every other day. (This is approximate... time will tell... might change as we see the effect of the elliptical orbit)
If you are in the wilderness, just monitor 145.825 and when you hear PSAT2, then you can easily guess all orbits in the future...
Bob, WB4APR
-----Original Message----- From: Robert Bruninga bruninga@usna.edu Sent: Thursday, June 27, 2019 12:13 PM To: 'amsat bb' amsat-bb@amsat.org Cc: Robert Bruninga bruninga@usna.edu; 'Steve Dimse' sdimse@gmail.com Subject: PSAT2 is coming to Northern Latitudes!!
PSAT2 is coming to the Northern hemisphere!
After reviewing the orbit, it is somewhat time synchronous, meaning each orbit time (at mid northern latitudes) is just 5 minutes later each night. But then a NEW earlier orbit appears 90 minutes earlier every other day.
So, by the 4th of july, one week from now, PSAT2 first pass will be as early as 4 PM local time... (in the Northern Hemisphere mid latitudes)
And the Apogee moves rapidly, In just two weeks, Apogee will be over the northern hemisphere giving higher latitudes much better access. At launch it was the middle of the night and perigee was in the Northern hemisphere making it only visible for lower latitudes.
So things will improve for Northern Hemisphere .... (and then two weeks get worse, etc)...
24 Hour telemetry plots (links to FINDU.COM) are now available on the http://aprs.org/psat2.html page.
Bob, WB4APR _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (2)
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Robert Bruninga -
Robert MacHale