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Telecon tomorrow (Thursday) @ 5 pm Eastern time

Hi all,

Telecon tomorrow (July 18 in North America, July 19 in Australia) at the regular time: 5 pm Eastern (2 pm Pacific, 11 am Hawaii, 23.00 European, 7 am Eastern Australia). Updates on drop testing, on testing of the OSI and Hamamatsu photodiodes with the new amplifier boards, and on new updates on AIFCOMSS station-keeping prediction/simulation software. More discussion items for tomorrow's telecon include: flight/telescope plans and tests; construction and lab tests of the new gondola/payload; light sources and light source modelling; goniometric and pre- and post-flight calibration; propulsion work; nanosat bus and payload solid models; computing / website / TWiki forums and e-mails; grant applications; and recap of schedules. I'll send an update with some recent photos, etc, before the telecon tomorrow.

Here's how to connect:

1) Open Skype on your computer (note that of course, you should first install Skype, http://www.skype.com, on your machine if you haven't already).

2) In the "Contacts" menu, add me ( jalbertuvic ) as a contact, if you haven't already.

3) Just wait for me to Skype-call you at the usual time (5 pm Eastern, 2 pm Pacific, etc).

4) If there is any trouble, or if you don't get a Skype-call for some reason and would like to join, please just send me an e-mail (jalbert@uvic.ca).

Here's the tentative agenda:

I) Flight & telescope plans, and upcoming tests

II) Construction, drop tests, and other tests of the new gondola and payload

III) Diffused light source and its modelling, pre- and post-flight calibration, and goniometric calibrations

IV) Solid modelling

V) Computing/website, including recent flight control and simulation progress

VI) Grant applications

VII) AOB

Talk to you all tomorrow, thanks!!!

justin

-- jalbert - 2019-07-17

Hi all!

Apologies for the delay! -- here's a quick update on ALTAIR balloon work over the past 2 weeks, minutes of the meeting 2 weeks ago (attendees Arnold Gaertner [NRC] and me), and a reminder of the telecon in a half-hour(!) from now:

Last week the department electronics shop here handed over the 3 precision photodiode amplifier boards to us -- and specifically to students Peter Ogilvie, Afif Omar, and Zejia Xu -- for continued testing of photodiodes with the boards (and then I will install those boards into ALTAIR). The students are thus presently working on reproducing the electronics shop photodiode testing setup pictured here:

and then reproduce a couple of the plots shown back in the minutes from two meetings ago:

https://wiki.heprc.uvic.ca/twiki/bin/view/Forum/ForumGeneral0031

and then proceed with testing the windowless photodiodes in a clean area (which hasn't been done yet). The students will hopefully have those tasks done in the next couple of weeks.

Outdoor drop testing is still being bureaucratically held up because of the local height restriction bylaw issues mentioned in the last minutes ( https://wiki.heprc.uvic.ca/twiki/bin/view/Forum/ForumGeneral0032 ) but we are working on resolving that.

Summer students Afif and Logan are additionally working on AIFCOMSS flight path prediction at present.

The survey-tripod-mounted device to cross-check yaw-pitch-roll information from the gondola (e.g., on days before/after flights) is also constructed now, thanks to Mark Lenckowski -- photo at:

and all that remains to be done is to finish the small fitting between the device and the bottom of the payload. The purchased hardware in it includes both the survey tripod (http://www.cpotools.com/cst-berger-60-alwi20-o-aluminum-tripod-with-quick-release--orange-/cstn60-alwi20-o,default,pd.html), two adjustable angle mounts (http://www.thorlabs.com/thorproduct.cfm?partnumber=AP180), and a rotation mount (https://www.thorlabs.com/thorproduct.cfm?partnumber=RP01). That last fitting to attach (temporarily, pre- or post-flight) the upper adjustable angle mount to the payload landing gear has been started and will be completed here in the next couple weeks.

We're currently revising the draft initial contractual agreement from our colleagues at Globalstar Canada regarding 2 initial SPOT Trace devices (and their service plans) for the educational side-project for the upcoming NATO SPS application, in which classrooms in elementary and high schools could launch company-donated SPOT Traces using party balloons (or a more environmentally-friendly version thereof), and track them to learn more about winds at different levels in Earth's atmosphere.

Houman will send Cordell and/or us updated sections of his master's thesis soon -- that information will be extremely useful to us going forward. Also, Susana and Nathan, it would be very helpful for us all to get the JHU students' final writeup when you have a chance.

Next grant application will be a NATO "Science for Peace and Security" application, together with Australian colleague partners.

Our next telecon is in 30 minutes(!) from now (see below for Skype instructions).

Cheers, talk in a half-hour from now! -- thanks all!

justin

-- jalbert - 2019-07-18

DiscussionTopicForm
Title Telecon tomorrow (Thursday) @ 5 pm Eastern time
Forum ForumGeneral
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I Attachment History Action Size Date Who Comment
JPEGjpg ALTAIRPrecisionPDAmpBoardTestSetupPhoto12July2019.jpg r1 manage 2418.1 K 2019-07-18 - 20:06 UnknownUser Electronic shop testing setup for photodiodes with ALTAIR precision photodiode amplifier boards that students Peter Ogilvie, Afif Omar, and Zejia Xu will attempt to reproduce
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Topic revision: r2 - 2019-07-18 - jalbert
 
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