(meteorobs) Swift Sees 5th Magn. GRB!

[meteoreye at comcast.net]

Yes, air traffic compomises our NJAA All sky camera greatly. In order to avoid capturing hundreds of planes a night, the threshhold for meteor detection must ignore most slow objects. Unfortunately it cuts out slow meteors as well. It did very bad detecting Quadrantids due to the low elevation resulting in slow angular velocity. Having seen that, we will try and adjust the parameters for low elevation showers in the future, but that must be done manually for each such circumstance. I think this is why we have missed some spectacular fireballs as well.

-------------- Original message -------------- 
From: <stange34 at sbcglobal.net> 

> Thanks Wayne, I realized my error but could not edit my post. 
> 
> Because I set handyavi extremely high in brightness & contrast (contrast, is 
> set to 6533, brightness is set to 5400), with normal being 5000 for both, 
> it should have seen a stationary 5th mag light burst. 
> 
> Darn' airplane traffic caused me to delay turning it on & I forgot it. 
> 
> YCS 
> 
> ----- Original Message ----- 
> From: 
> To: "Global Meteor Observing Forum" 
> Sent: 2008/03/20 11:24 
> Subject: Re: (meteorobs) Swift Sees 5th Magn. GRB! 
> 
> 
> > Just to clarify, the brightness was +5.6 not -5 
> > Wayne 
> > 
> > -------------- Original message -------------- 
> > From: 
> > 
> >> The Sentinel system would have detected it being -5Mag (IF) there had 
> >> been 
> >> some motion to it. Sentinel does not normally detect a stationary light 
> >> burst. 
> >> 
> >> My second backup system(HandyAvi) ,would have detected it because it does 
> >> not rely on motion solely....failed because I had forgot to start it 
> >> after 
> >> setting it up that night. My fault. 
> >> 
> >> That system normally captures light bursts etc., and records many 
> >> hundreds 
> >> of megabytes each night(mostly from airplanes) which I delete at each 
> >> time 
> >> of the new nights setup. 
> >> 
> >> I should not have missed that.....but it was an accident. 
> >> 
> >> Larry 
> >> Yuba City Sentinel 
> >> 
> >> ----- Original Message ----- 
> >> From: "George Gliba" 
> >> To: "Global Meteor Observing Forum" 
> >> Sent: 2008/03/20 10:25 
> >> Subject: Re: (meteorobs) Swift Sees 5th Magn. GRB! 
> >> 
> >> 
> >> > Thomas Ashcraft wrote: 
> >> >> Hi George, 
> >> >> 
> >> >> For what it's worth I can contribute a negative observation. Maybe it 
> >> >> will still has value to the GRB team? 
> >> >> 
> >> >> My Sentinel visual camera system was in operation but is not sensitive 
> >> >> enough to capture +5 mag events. Nothing seen. 
> >> >> My radio system was also in operation but my radiospectrograph saw 
> >> >> nothing special during that particular minute, just small space dust 
> >> >> paricles. 
> >> >> I posted the radio chart, which is down the page below the meteor 
> >> >> movies. 
> >> >> 
> >> >> Please forward the page reference if it has any use. 
> >> >> 
> >> >> http://www.heliotown.com/Fireballs_March_19_2008_Ashcraft.html 
> >> >> 
> >> >> Thomas Ashcraft 
> >> >> New Mexico 
> >> >> 
> >> >> 
> >> >> 
> >> >> George Gliba wrote: 
> >> >> 
> >> >>> Fellow Observers, 
> >> >>> 
> >> >>> Last night the NASA SWIFT spacecraft saw the most extrinsically 
> >> >>> luminous 
> >> >>> Gamma-ray Burst ever known..... 
> >> >>> may have seen it. Perhaps some meteor observers saw it or it was seen 
> >> >>> with a video 
> >> >>> camera. The time was 6:10 to 6:13 UT March 19, in Bootes. 
> >> >>> 
> >> >>> GWG 
> >> >>> 
> >> >>> 
> >> >>> 
> >> >> 
> >> >> _______________________________________________ 
> >> >> Mailing list meteorobs: meteorobs at meteorobs.org 
> >> >> To UNSUBSCRIBE, email: owner-meteorobs at meteorobs.org 
> >> >> http://lists.meteorobs.org/mailman/listinfo/meteorobs 
> >> >> 
> >> > Thomas, 
> >> > 
> >> > What is the limiting magnitude of the video? 
> >> > 
> >> > Thanks, 
> >> > GWG 
> >> > 
> >> > _______________________________________________ 
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> >> 
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