Joe et al: Aside from orbit changes, getting the doppler correction right is also pretty fussy. I noticed yesterday that I'm a bit off frequency on the previous official keps (at TCA where things change most quickly) where I was not when they first came out.
I don't know if they are doing their own orbit determination. I never heard such. I have also not heard about when they will be doing which experiment.
73,
Burns WB1FJ
On Wed, Feb 5, 2020 at 8:07 PM Joseph B. Fitzgerald via AMSAT-BB < amsat-bb@amsat.org> wrote:
Kevin bring up an interesting point about the validity of HuskySat-1 elements and their "freshness". Usually element sets are good for a week or more, at least for ham purposes where we have fairly wide beam widths. The exception is the ISS, the only spacecraft we have in nasabare.txt that maneuvers, and we keep its element sets "fresh" by applying updates from Johnson Spaceflight Center several times per day. Husky-Sat 1 will be testing a thruster early in its mission, and endeavors to demonstrate a delta-V of 100m/sec or more. This could cause the accuracy of element sets to degrade more quickly than usual. Do we know if the University of Washington people are doing any orbit estimation/determination?
Also, I updated nasabare.txt with the fresher elements Kevin posted. Given that he has more than 2500 packets received, I'll use what he is using.
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