12 images of PD120 (2 min transmit time, with 2 min "rest" time) ends up having a 2x period of 96 minutes. The period of the ISS is 93 minutes. This means that we frequently end of seeing duplicates of images on successive passes.
I would suggest adding or subtracting an appropriate amount of images to "break up" the pattern. Just a suggestion.
Happy New Year, everyone.
--Roy K3RLD
+1
I brought this up earlier, suggesting either a change in the number of images or randomizing the order. Even adding a single (or two for the superstitious) would do it.
Greg KO6TH
Roy Dean wrote:
12 images of PD120 (2 min transmit time, with 2 min "rest" time) ends up having a 2x period of 96 minutes. The period of the ISS is 93 minutes. This means that we frequently end of seeing duplicates of images on successive passes.
I would suggest adding or subtracting an appropriate amount of images to "break up" the pattern. Just a suggestion.
Happy New Year, everyone.
--Roy K3RLD
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As it turns out, the event ended up seeing images spread out 3-4 mins apart. Not sure if this had the intended effect. Frankly I’m happy with what we were able to get
On Fri, Jan 1, 2021 at 4:31 PM Greg D ko6th.greg@gmail.com wrote:
+1
I brought this up earlier, suggesting either a change in the number of images or randomizing the order. Even adding a single (or two for the superstitious) would do it.
Greg KO6TH
Roy Dean wrote:
12 images of PD120 (2 min transmit time, with 2 min "rest" time) ends up
having a 2x period of 96 minutes. The period of the ISS is 93 minutes. This means that we frequently end of seeing duplicates of images on successive passes.
I would suggest adding or subtracting an appropriate amount of images to
"break up" the pattern. Just a suggestion.
Happy New Year, everyone.
--Roy K3RLD
Sent via AMSAT-BB(a)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!
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at
Sent via AMSAT-BB(a)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!
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
it took a few days, but my station was able to capture all 12 images.
these are great events, and I never get tired of downloading the SSTV images.
thank you to the folks that put it on.
73 Christy KB6LTY
participants (4)
-
Brian Wilkins KO4AQF -
christy hunter -
Greg D -
Roy Dean