From: Milton Aupperle <maupperl@gmail.com>

Date: August 23, 2014 1:42:44 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] 22 Aug 2914 1540 UTC AR2146 C6.2 Flare

Hi Paul;

Nice catch. And congratulations on retiring too :)

A couple of questions on your set up.

I can't find any reference to the "GX-FW-60S1M-C" at all. The closest PGR Express camera to that would be "GX-FW-60S6M-C" - which does match your indicated CCD and frame sizes.

Also, you should easily be able to capture 8 bit  2736 x 2192 frames in Format 7 mode at ~11 fps to an internal SSD. That only amounts to about 62.9 megabytes per second recording to disk, and pretty much any fairly modern Mac (i.e. 2010 on) with a stock 7200 rpm Hard Drive should be able to keep up. Even If you are running the camera in 16 bit mode, you would get ~5.5 fps max rate. So I don't know why you need to go to a memory drive is a baffling.

Lastly what Mac OSX version and Mac model are you using? The only frame rate limitations might be if your using a Thunderbolt to FireWire adapter (I am not sure how well they perform, how much stress Apple actually put them under for testing or how closely they follow the Spec - they are barely compliant with power draw) and / or running Mavericks with it idiotic "App Nap" enabled - which cripples all real time performance applications. Unless an App is playing audio, Apple knee caps the performance of it using "App Nap" (an all threads too) - which you have to turn off in the "Info" window for an App using the Finder.

Thanks for sharing..

Milton J. Aupperle

206 - 6414 Travois Place NW

Calgary Alberta T2K 3T2

Phone: 403-453-1624

maupperl@gmail.com

http://www3.telus.net/maupperl

On 23-Aug-14, at 12:15 PM, Paul Gaylord pgaylord@cox.net [Astro_IIDC] wrote:

Hi All,

It's been a long time for me to post anything, let alone be doing amateur astro....

Been retired since December, so hopefully I can start getting out more!

Anyway, since July, I've been practicing with my new (used) Lunt LS100THa and new PGR camera.

Discovered that I had captured the flare. The gif is terrible, I used some frames that I should have trashed (along with the far worse ones) but, it's my first flare, so I'm kind of jazzed up about it.

Link:

http://www.astropg.com/amateur_astronomy/solar_system/the_sun/201408221540utcflare.html

TinyURL for just-in-case:

http://tinyurl.com/oljt2pz

There's more solar images that I've taken between Jul and now in the Sun section (right arrow at top right or menu to the left of it) in case your interested.

Thanks for looking,

Paul