May 2024 - pacsat-dev - mailman.amsat.org

Re: Dev meeting 5/30/2024 discussions
by Burns Fisher (AMSAT) 31 May '24

31 May '24

I have no problem with that as long as Cameron is not doing something for Golf (to be clear, Zach designed RTIHU V1.0 and V1.1. Cameron did V1.2, and may be called on to do a V1.3 cleanup.) I think that Cameron is working with Jeff Vollin and maybe some others on thruster research (an ASCENT program, I'd say). The point being some negotiation might be a good idea with Mike and/or Eric and Cameron himself. 73, Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software* On Fri, May 31, 2024 at 9:01 AM Bill Reed via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > Here is my summary of our discussions last night. > > Topic 1: > Mike Moore and the Fox Plus project have selected pacsat as one of the > payloads on their second > Fox Plus satellite, with launch planned for late 2025. > We feel that we should support that launch with our current version 1 > design. Consequently this > moves our ASCENT project to the status of a flight hardware provider. I > think we can support that > effort with the funds that remain from the ASCENT project. > The most significant task facing us is the clean up and build of the > existing pacsat prototype. In order > to accomplish that end, we need to add to our development team. I would > like to ask Cameron Castillo, > who did much of the RT-IHU layout, if he would join our engineering team > and help us complete our > Blinky layout. > > Topic 2: > I would like to ask Ron Fevig, N0UCV, if he would like to join our > engineering team. I would ask > him to do additional pacsat testing ( initially with our launchpad > hardware ) and provide documentation > for the pacsat user. Ron is currently an Amsat life member and a > professor at the University of North Dakota > Department of Space Studies. He is considering pacsat for a future > launch that is TBD. > > I solicit your opinions on these 2 Topics and I will not move forward > with implementation until I > have heard everyone's response. ( Chris and Bob responded last night) > > Bill > ( cell is 214 437-9555 if you want to discuss ) > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

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Re: New Project
by Chris Thompson 31 May '24

31 May '24

I doubt the wooden transistors have much gain but perhaps a very low noise figure. Or perhaps they have forgotten to mention that it is still 90% silicon, metal and fiberglass with a wood shell... On Fri, May 31, 2024, 11:37 Burns Fisher (AMSAT) via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > Interesting thermal issues, I should think. > 73, > > Burns Fisher, WB1FJ > *AMSAT(R) Engineering -- Flight Software* > > > On Fri, May 31, 2024 at 11:20 AM Jim McCullers via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > >> Notty Pine Sat >> >> >> >> >> https://gizmodo.com/japan-launching-wooden-satellite-mitigate-debris-185150… >> >> >> >> Burns in a blaze of glory! >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/[email protected] >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

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Re: New Project
by Burns Fisher (AMSAT) 31 May '24

31 May '24

Interesting thermal issues, I should think. 73, Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software* On Fri, May 31, 2024 at 11:20 AM Jim McCullers via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > Notty Pine Sat > > > > > https://gizmodo.com/japan-launching-wooden-satellite-mitigate-debris-185150… > > > > Burns in a blaze of glory! > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

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Re: Dev meeting 5/30/2024 discussions
by Jim McCullers 31 May '24

31 May '24

Sorry I had to moss the meeting last night. Appears it might be interesting. Bill, I would appreciate a call to discuss the discussion. Late Sunday afternoon might be best due to weekend family issues. It would be good to know how far ahead UND is on their design. If still in the early stage it would be benefical to have them use the RT-IHU layout and 104 connector pinouts to reduce the need of another board layout. The lack of a universal standard on that connector at least to the physical location is baffling. Bill, I might be able to call this afternoon. I'm waiting on my son to call with his plans for the day. He's in town for the weekend. Jim McCullers WA4CWI Here is my summary of our discussions last night. Topic 1: Mike Moore and the Fox Plus project have selected pacsat as one of the payloads on their second Fox Plus satellite, with launch planned for late 2025. We feel that we should support that launch with our current version 1 design. Consequently this moves our ASCENT project to the status of a flight hardware provider. I think we can support that effort with the funds that remain from the ASCENT project. The most significant task facing us is the clean up and build of the existing pacsat prototype. In order to accomplish that end, we need to add to our development team. I would like to ask Cameron Castillo, who did much of the RT-IHU layout, if he would join our engineering team and help us complete our Blinky layout. Topic 2: I would like to ask Ron Fevig, N0UCV, if he would like to join our engineering team. I would ask him to do additional pacsat testing ( initially with our launchpad hardware ) and provide documentation for the pacsat user. Ron is currently an Amsat life member and a professor at the University of North Dakota Department of Space Studies. He is considering pacsat for a future launch that is TBD. I solicit your opinions on these 2 Topics and I will not move forward with implementation until I have heard everyone's response. ( Chris and Bob responded last night) Bill ( cell is 214 437-9555 if you want to discuss ) ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to pacsat-dev-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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New Project
by Jim McCullers 31 May '24

31 May '24

Notty Pine Sat https://gizmodo.com/japan-launching-wooden-satellite-mitigate-debris-1851508 941 Burns in a blaze of glory!

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Dev meeting 5/30/2024 discussions
by Bill Reed 31 May '24

31 May '24

Here is my summary of our discussions last night. Topic 1: Mike Moore and the Fox Plus project have selected pacsat as one of the payloads on their second Fox Plus satellite, with launch planned for late 2025. We feel that we should support that launch with our current version 1 design. Consequently this moves our ASCENT project to the status of a flight hardware provider. I think we can support that effort with the funds that remain from the ASCENT project. The most significant task facing us is the clean up and build of the existing pacsat prototype. In order to accomplish that end, we need to add to our development team. I would like to ask Cameron Castillo, who did much of the RT-IHU layout, if he would join our engineering team and help us complete our Blinky layout. Topic 2: I would like to ask Ron Fevig, N0UCV, if he would like to join our engineering team. I would ask him to do additional pacsat testing ( initially with our launchpad hardware ) and provide documentation for the pacsat user. Ron is currently an Amsat life member and a professor at the University of North Dakota Department of Space Studies. He is considering pacsat for a future launch that is TBD. I solicit your opinions on these 2 Topics and I will not move forward with implementation until I have heard everyone's response. ( Chris and Bob responded last night) Bill ( cell is 214 437-9555 if you want to discuss )

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Pacsat dev mtg 5/30/2024
by Bill 30 May '24

30 May '24

Should be an interesting meeting tonight. We need to make some key decisions regarding Fox-Plus and University of North Dakota. Pacsat dev mtg 5/30/2024 Thu, May 30, 2024 7:00 PM - 9:00 PM (CDT) Please join my meeting from your computer, tablet or smartphone. https://meet.goto.com/460114245 You can also dial in using your phone. (For supported devices, tap a one-touch number below to join instantly.) United States: +1 (872) 240-3311 - One-touch: tel:+18722403311,,460114245# Access Code: 460-114-245 Join from a video-conferencing room or system. Dial in or type: 67.217.95.2 or inroomlink.goto.com Meeting ID: 460 114 245 Or dial directly: 460114245(a)67.217.95.2 or 67.217.95.2##460114245 Get the app now and be ready when your first meeting starts: https://meet.goto.com/install

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Pacsat dev mtg 5/30/2024
by Bill 30 May '24

30 May '24

Should be an interesting meeting tonight. We need to make some key decisions regarding Fox-Plus and University of North Dakota. Pacsat dev mtg 5/30/2024 Thu, May 30, 2024 7:00 PM - 9:00 PM (CDT) Please join my meeting from your computer, tablet or smartphone. https://meet.goto.com/460114245 You can also dial in using your phone. (For supported devices, tap a one-touch number below to join instantly.) United States: +1 (872) 240-3311 - One-touch: tel:+18722403311,,460114245# Access Code: 460-114-245 Join from a video-conferencing room or system. Dial in or type: 67.217.95.2 or inroomlink.goto.com Meeting ID: 460 114 245 Or dial directly: 460114245(a)67.217.95.2 or 67.217.95.2##460114245 Get the app now and be ready when your first meeting starts: https://meet.goto.com/install

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Re: Fwd: pacsat on foxplus
by Jim McCullers 29 May '24

29 May '24

Definitely need the PCB layout. Good start. Are they V/U? Who’s building the antenna combiners? Jim FYI Attached is the preliminary Combo LIHU / Fox-Plus IHU PC104 connector. I have not "published" it yet as I'm waiting for feedback from the PCB designer. But I don't think it will change. PACSAT would get its power from the 5v_sw_1 or the 3v3_sw_1 depending on what you need. Both come from the ISISPACE EPS we are using. The [Rn] shown are zero ohm resistors which are populated for LIHU but not for Fox-Plus. Thanks, Mike On 5/29/24 11:33, Bill Reed wrote: Thanks. And can you direct me to your document for the Fox-Plus PC104? On 5/29/2024 10:10 AM, Mike Moore wrote: Very rough estimate for Fox-Plus-A is Q3 2025, with Fox-Plus-B to follow soon thereafter (Q4?) Mike K4MVM On 5/29/24 11:00, Bill Reed wrote: Do you have a rough estimate for a launch date? On 5/29/2024 9:45 AM, Mike Moore wrote: Bill, I am definitely interested in flying PACSAT. We will not be able to fly it on Fox-Plus-A (the first Fox-Plus) but want to put it on Fox-Plus-B. It would be flown as an experimental payload, so could be turned on and off by the OBC. The interface would be via the PC104 connector, so you will need to adapt to the Fox-Plus PC104. I will be on tonight's meeting, but I am going out of town on vacation for about 2 weeks starting tomorrow. Thanks and 73, Mike K4MVM On 5/28/24 16:05, Bill Reed wrote: Mike, I have heard rumors that the foxplus team might be interested in flying pacsat on a future flight. Can we discuss this at some point to see if a future flight might be possible. The pacsat team is completing the ASCENT proof of concept and we are evaluating what our next steps might be. Bill Reed Pacsat team lead bill(a)brconnect.com <mailto:[email protected]> Cell 214 437 9555

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Re: Fwd: pacsat on foxplus
by Chris Thompson 29 May '24

29 May '24

Very good to hear. Thanks for forwarding. In addition to updating our connector it would be good to layout a timeline for work on other changes and testing. 73 Chris On Wed, May 29, 2024, 17:18 Bill Reed via pacsat-dev <pacsat-dev(a)amsat.org> wrote: > FYI > > > -------- Forwarded Message -------- > Subject: Re: pacsat on foxplus > Date: Wed, 29 May 2024 12:47:02 -0400 > From: Mike Moore <k4mvm.22(a)gmail.com> <k4mvm.22(a)gmail.com> > To: Bill Reed <bill(a)brconnect.com> <bill(a)brconnect.com> > > Attached is the preliminary Combo LIHU / Fox-Plus IHU PC104 connector. I > have not "published" it yet as I'm waiting for feedback from the PCB > designer. But I don't think it will change. PACSAT would get its power from > the 5v_sw_1 or the 3v3_sw_1 depending on what you need. Both come from the > ISISPACE EPS we are using. The [Rn] shown are zero ohm resistors which are > populated for LIHU but not for Fox-Plus. > > Thanks, > > Mike > > > On 5/29/24 11:33, Bill Reed wrote: > > Thanks. And can you direct me to your document for the Fox-Plus PC104? > > On 5/29/2024 10:10 AM, Mike Moore wrote: > > Very rough estimate for Fox-Plus-A is Q3 2025, with Fox-Plus-B to follow > soon thereafter (Q4?) > > Mike K4MVM > > > > On 5/29/24 11:00, Bill Reed wrote: > > Do you have a rough estimate for a launch date? > > On 5/29/2024 9:45 AM, Mike Moore wrote: > > Bill, > > I am definitely interested in flying PACSAT. We will not be able to fly it > on Fox-Plus-A (the first Fox-Plus) but want to put it on Fox-Plus-B. It > would be flown as an experimental payload, so could be turned on and off by > the OBC. The interface would be via the PC104 connector, so you will need > to adapt to the Fox-Plus PC104. > > I will be on tonight's meeting, but I am going out of town on vacation for > about 2 weeks starting tomorrow. > > Thanks and 73, > > Mike K4MVM > > > On 5/28/24 16:05, Bill Reed wrote: > > Mike, > > I have heard rumors that the foxplus team might be interested in flying > pacsat on a future flight. > > Can we discuss this at some point to see if a future flight might be > possible. The pacsat team is > completing the ASCENT proof of concept and we are evaluating what our next > steps might be. > > Bill Reed > Pacsat team lead > bill(a)brconnect.com > Cell 214 437 9555 > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

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