It appears that HuskySat is now in orbit - and from what I understand it won't be until AFTER the Cygnus leaves the ISS that it's released. Is there a timeframe that we should be watching in order to start "listening" for it?
--Roy K3RLD
Cygnus is scheduled to depart the ISS on January 13, 2020 and raise its orbit to around 500 km before deploying HuskySat-1 and SwampSat. After deployment, I believe the 1200 bps BPSK beacon on 435.800 MHz (decodable with FoxTelem) will be active. It will then complete its primary mission, expected to last 30 days, testing a pulsed plasma thruster and experimental 24 GHz data transmitter before being turned over to AMSAT for amateur radio operations.
73,
Paul, N8HM
On Sat, Nov 2, 2019 at 11:57 AM Roy Dean via AMSAT-BB [email protected] wrote:
It appears that HuskySat is now in orbit - and from what I understand it won't be until AFTER the Cygnus leaves the ISS that it's released. Is there a timeframe that we should be watching in order to start "listening" for it?
--Roy K3RLD _______________________________________________ Sent via [email protected]. 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
On 11/2/2019 9:07 AM, Paul Stoetzer via AMSAT-BB wrote:
It will then complete its primary mission, expected to last 30 days, testing a pulsed plasma thruster and experimental 24 GHz data transmitter before being turned over to AMSAT for amateur radio operations.
I'm just curious, more than wanting to actually do anything, but what does a ground station receiver for 24Ghz 1b/s data look like? Did they build this with off the shelf parts?
Hi Paul,
I'm curious about the 24 GHz payload. It appears to have been coordinated at 24.049 GHz?
I'm interested in seeing if I can detect it here in VT. I have several 24 GHz receive systems including my 2' dish left over from the AO-40 days.
Mike
On 11/2/2019 12:07 PM, Paul Stoetzer via AMSAT-BB wrote:
Cygnus is scheduled to depart the ISS on January 13, 2020 and raise its orbit to around 500 km before deploying HuskySat-1 and SwampSat. After deployment, I believe the 1200 bps BPSK beacon on 435.800 MHz (decodable with FoxTelem) will be active. It will then complete its primary mission, expected to last 30 days, testing a pulsed plasma thruster and experimental 24 GHz data transmitter before being turned over to AMSAT for amateur radio operations.
73,
Paul, N8HM
Presuming that their primary mission pulsed plasma thruster performs perfectly, perhaps Paul can proclaim for us the predicted perigree perturbations?
What is the expected new orbit after thrusting? Higher apogee? Elliptical?
73, Douglas KA2UPW/5
On Nov 2, 2019, at 11:07 AM, Paul Stoetzer via AMSAT-BB [email protected] wrote:
Cygnus is scheduled to depart the ISS on January 13, 2020 and raise its orbit to around 500 km before deploying HuskySat-1 and SwampSat. After deployment, I believe the 1200 bps BPSK beacon on 435.800 MHz (decodable with FoxTelem) will be active. It will then complete its primary mission, expected to last 30 days, testing a pulsed plasma thruster
That was awesome......(and prodigious use of the letter P), Presumably Osh Park with their promptly produced perfect purple PCBs would be proud.
I too am very interested in the K-band system. Did some googling, wish there was more about it on the web, but get that we might not be able to bug them for a bit as things are busy. Will they be formally turning the system over to AMSAT for command and control after completion of their mission.......will there be a chance in the future to turn the K-Band system on when not over Washington? Any info on the ground systems they are using to demonstrate the K-band radio? I'm wondering about feasibility of follow on experiments with microwave. Seems like a good candidate mission to pair up with the 6.1m antennas brought up at the Symposium for University of Arizona / Rincon (useable up to ~250 GHz).....maybe useful to demonstrate their ground systems are working (if the K-band TX can be turned on over Arizona/Colorado).....
-Zach, KJ4QL*P* P.S. yours was more original :-)
On 2019-11-04 15:07, Leffke, Zachary via AMSAT-BB wrote:
I too am very interested in the K-band system.
We should all be interested in proliferating in the microwave and mm-wave bands:
‘Because it’s such wide bandwidth, you can pretty much eliminate the problems that 2.4GHz has,’ says Sanitate. The 2.4 GHz frequency spectrum is overwhelmed with a ton of different devices around the house, including Wi-Fi, Bluetooth, and ZigBee devices, as well as cordless phones, car alarms, and microwave ovens. UWB uses higher frequency ranges that aren’t as overwhelmed. ‘There’s really nothing in that space,’ Sanitate says. ‘Some Wi-Fi uses 5GHz, but above 5GHz there’s really nothing.’
Re-quoted from https://9to5mac.com/2019/10/11/u1-chip/
Use it or lose it.
--- Zach N0ZGO
Zach,
The Part 97 license that AMSAT will operate under does not include or allow the use of any of the experiments on board. As those experiments were not able to conform to the Part 97 so called 'educational exemption', including the K-band radio, that is ultimately why two licenses were required. Part 5 Experimental is operated by UW for everything including the telemetry downlink of the AMSAT transponder module, and the transponder must remain off during that operation. Part 97 operation by AMSAT will solely be the AMSAT transponder module.
This was the first partnership with an educational institution where an AMSAT radio was flown on a non-AMSAT (UW in this case) CubeSat. In the process of working with the FCC and NASA to obtain a single Part 97 license that was not complicated or restricted by "pecuniary interest", the experience developed an understanding with FCC as to how a mission such as HuskySat-1 could be fully licensed under Part 97. There were delays and difficulties in executing all of the requirements to qualify Part 97 and that ultimately carried on up to the mission deadline requirement for having a license in hand in order for HuskySat-1 to be integrated on the LV. The only way forward at that time, in order for UW to make the launch, was to do the separate licensing.
It was lots of work and some good frustration along the way and I thank and commend our partners at University of Washington as well as the FCC for their work to make it happen, and our friends at NASA for giving us the opportunity to push for a path to amateur radio licensing for more of the CubeSat launches they sponsor. I believe that it has resulted in a known path toward fully Part 97 licensed educational (e.g. university) CubeSats. That should in turn offer more opportunities for AMSAT radios to fly as the communications package for a mission as well as an operating amateur radio satellite, in the same way as the CubeSats we produce.
Jerry Buxton, NØJY
On 11/4/2019 15:07, Leffke, Zachary via AMSAT-BB wrote:
I too am very interested in the K-band system. Did some googling, wish there was more about it on the web, but get that we might not be able to bug them for a bit as things are busy. Will they be formally turning the system over to AMSAT for command and control after completion of their mission.......will there be a chance in the future to turn the K-Band system on when not over Washington? Any info on the ground systems they are using to demonstrate the K-band radio? I'm wondering about feasibility of follow on experiments with microwave. Seems like a good candidate mission to pair up with the 6.1m antennas brought up at the Symposium for University of Arizona / Rincon (useable up to ~250 GHz).....maybe useful to demonstrate their ground systems are working (if the K-band TX can be turned on over Arizona/Colorado).....
Thanks for the detailed response Jerry! I certainly can understand the headaches involved with the licensing, we're having our own issues at the moment (all part 5 stuff, not in the ham bands....it would seem to be a pretty simple thing we're trying to do, but apparently it's not.......searing headaches daily). One day I might pick your brain more about the details there, I've got something like 50 questions...........but not today, and not on the list. Even if the K-Band system is Part 5, it is still good to see it operating in the Amateur Satellite Service frequency band and stimulating use of microwave on smallsats. Perhaps some FCC magic can happen down the road and we can play with it too (won't hold my breath, but I can hope)! I'd still be interested in learning more about their ground segment for this system (there are hints of GNU Radio on their page). Any info on their HW design, link budgets, pointing control, etc.. would be interesting to me. If anyone can point me to additional information either on or off list I would appreciate it.
Good Luck to the HuskySat-1 Team!
-Zach, KJ4QLP
The Cygnus spacecraft is scheduled to remain at the space station until Jan. 13, 2020, when it will depart the station, deploy Nanoracks customer CubeSats, deorbit and dispose of several tons of trash during a fiery re-entry into Earth’s atmosphere around Jan. 31.
-----Original Message----- From: Roy Dean via AMSAT-BB Sent: Saturday, November 2, 2019 10:57 AM To: [email protected] Subject: [amsat-bb] HuskySat
It appears that HuskySat is now in orbit - and from what I understand it won't be until AFTER the Cygnus leaves the ISS that it's released. Is there a timeframe that we should be watching in order to start "listening" for it?
--Roy K3RLD _______________________________________________ Sent via [email protected]. 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 (9)
-
Cathryn Mataga -
Douglas Quagliana -
Glenn Miller - AA5PK -
Jerry Buxton -
Leffke, Zachary -
Mike Seguin -
Paul Stoetzer -
Roy Dean -
Zach Metzinger