Unusual HUSKYSAT-1 Beacon Behavior ~ 18:12 UTC
Hi,
Oddly enough, the orbit that began around 18:08 UTC (at least for FN41 in New England) was silent for most of the pass (as in no telemetry).
Around 18:12:40, when the bird was almost at the point of closest approach I heard the beacon turn on, send out perhaps a frame or two, then some sync tones, then the beacon went away. I did listen to the inverting repeater band to see if I heard anyone using the transponder, and it was quiet.
I am assuming someone is commanding the bird from the ground and doing some testing, but it was real odd not to have the beacon on for this pass. What frames I've decoded today are already in the data warehouse.
73, Bob, WB4SON
HI Bob, sounds like they (UW students) commanded it into SAFE mode. Watch the telemetry, it'll tell you...TX off, then TX ON to send a few frames, then OFF a couple minutes....repeat. Sounds like a Fox-family member indeed!
Mark N8MH
On Tue, Feb 18, 2020 at 1:23 PM Bob via AMSAT-BB amsat-bb@amsat.org wrote:
Hi,
Oddly enough, the orbit that began around 18:08 UTC (at least for FN41 in New England) was silent for most of the pass (as in no telemetry).
Around 18:12:40, when the bird was almost at the point of closest approach I heard the beacon turn on, send out perhaps a frame or two, then some sync tones, then the beacon went away. I did listen to the inverting repeater band to see if I heard anyone using the transponder, and it was quiet.
I am assuming someone is commanding the bird from the ground and doing some testing, but it was real odd not to have the beacon on for this pass. What frames I've decoded today are already in the data warehouse.
73, Bob, WB4SON _______________________________________________ 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
Power is back up to 83mw also.
On 2/18/2020 11:24, Mark L. Hammond via AMSAT-BB wrote:
HI Bob, sounds like they (UW students) commanded it into SAFE mode. Watch the telemetry, it'll tell you...TX off, then TX ON to send a few frames, then OFF a couple minutes....repeat. Sounds like a Fox-family member indeed!
Mark N8MH
On Tue, Feb 18, 2020 at 1:23 PM Bob via AMSAT-BB amsat-bb@amsat.org wrote:
Hi,
Oddly enough, the orbit that began around 18:08 UTC (at least for FN41 in New England) was silent for most of the pass (as in no telemetry).
Around 18:12:40, when the bird was almost at the point of closest approach I heard the beacon turn on, send out perhaps a frame or two, then some sync tones, then the beacon went away. I did listen to the inverting repeater band to see if I heard anyone using the transponder, and it was quiet.
I am assuming someone is commanding the bird from the ground and doing some testing, but it was real odd not to have the beacon on for this pass. What frames I've decoded today are already in the data warehouse.
73, Bob, WB4SON _______________________________________________ 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
Latest telemetry captures here in FN41 show power output at 16.1 mw, and PA Current at 34.5 ma. Sure hope it has been commanded into a low power state (if that is possible). That -10 dB power drop pretty much puts the signal right into the noise floor. Only copied 3 frames on a 46 degree pass at 17:40 UTC. Two weeks ago it would have been 30+ frames
Not complaining, just observing.
73, Bob, WB4SON
On Tue, Feb 18, 2020 at 4:54 PM Kevin via AMSAT-BB amsat-bb@amsat.org wrote:
Power is back up to 83mw also.
On 2/18/2020 11:24, Mark L. Hammond via AMSAT-BB wrote:
HI Bob, sounds like they (UW students) commanded it into SAFE mode.
Watch
the telemetry, it'll tell you...TX off, then TX ON to send a few frames, then OFF a couple minutes....repeat. Sounds like a Fox-family member indeed!
Mark N8MH
On Tue, Feb 18, 2020 at 1:23 PM Bob via AMSAT-BB amsat-bb@amsat.org
wrote:
Hi,
Oddly enough, the orbit that began around 18:08 UTC (at least for FN41
in
New England) was silent for most of the pass (as in no telemetry).
Around 18:12:40, when the bird was almost at the point of closest
approach
I heard the beacon turn on, send out perhaps a frame or two, then some
sync
tones, then the beacon went away. I did listen to the inverting
repeater
band to see if I heard anyone using the transponder, and it was quiet.
I am assuming someone is commanding the bird from the ground and doing
some
testing, but it was real odd not to have the beacon on for this pass.
What
frames I've decoded today are already in the data warehouse.
73, Bob, WB4SON _______________________________________________ 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
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
Bob,
On the FB they stated
"We're playing with transmit powers today on HuskySat, in ~ 10 min it should be set back up to full power"
that was little over an hour ago
https://www.facebook.com/UWCubeSat/
On Wed, Feb 19, 2020 at 9:53 AM Bob via AMSAT-BB amsat-bb@amsat.org wrote:
Latest telemetry captures here in FN41 show power output at 16.1 mw, and PA Current at 34.5 ma. Sure hope it has been commanded into a low power state (if that is possible). That -10 dB power drop pretty much puts the signal right into the noise floor. Only copied 3 frames on a 46 degree pass at 17:40 UTC. Two weeks ago it would have been 30+ frames
Not complaining, just observing.
73, Bob, WB4SON
On Tue, Feb 18, 2020 at 4:54 PM Kevin via AMSAT-BB amsat-bb@amsat.org wrote:
Power is back up to 83mw also.
On 2/18/2020 11:24, Mark L. Hammond via AMSAT-BB wrote:
HI Bob, sounds like they (UW students) commanded it into SAFE mode.
Watch
the telemetry, it'll tell you...TX off, then TX ON to send a few
frames,
then OFF a couple minutes....repeat. Sounds like a Fox-family member indeed!
Mark N8MH
On Tue, Feb 18, 2020 at 1:23 PM Bob via AMSAT-BB amsat-bb@amsat.org
wrote:
Hi,
Oddly enough, the orbit that began around 18:08 UTC (at least for FN41
in
New England) was silent for most of the pass (as in no telemetry).
Around 18:12:40, when the bird was almost at the point of closest
approach
I heard the beacon turn on, send out perhaps a frame or two, then some
sync
tones, then the beacon went away. I did listen to the inverting
repeater
band to see if I heard anyone using the transponder, and it was quiet.
I am assuming someone is commanding the bird from the ground and doing
some
testing, but it was real odd not to have the beacon on for this pass.
What
frames I've decoded today are already in the data warehouse.
73, Bob, WB4SON _______________________________________________ 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
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
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 (4)
-
Bob -
Kevin -
KI7UNJ Tucker -
Mark L. Hammond