(meteorobs) OT -Gen. Info. Daylight Fireball mirror & a precursor "Blip"
chiayk1 at singnet.com.sg
chiayk1 at singnet.com.sg
Mon Jun 2 00:31:15 EDT 2008
Hi :
Very marvelous findings. Hm... i have mothballed a similar setup in my closet.
Given the ample ambient light - perhaps a day light fireball monitor requirement of a low lux ccd is not even required. Are u using the same ccd for both day and night or dedicated this one for the day only fireball.
Thanks
rgds
ykchia
www.nightevents.blogspot.com
--- stange34 at sbcglobal.net wrote:
> A common camera(non-low light) and a hemispherical mirror appears to
> be well
> suited for daylight fireballs for a number of reasons.
>
> a) Far less reflection artifacts than a all-sky lens camera.
> b) Better definition & contrast of Sun against the sky.
> c) Minimal field light saturation even with fixed focus & iris
> lens.
> c) Reasonable sensitivity to minor light events.
>
> This photo is with the mirror not yet fully aligned and height not
> adjusted
> for maximum field. Still being worked on at this time with heating
> still to
> do.
>
> Red indicators are the few artifacts under strong morning sunlight.
>
> BLUE circle is around a momentary sky ("Blip") event which is NOT
> ASSOCIATED
> with the nearby sunlight spike in photograph. This was confirmed by
> an image
> before & after the time of that event. I cannot estimate the
> magnitude with
> my limited skills of observation.
>
> http://www.geocities.com/stange34@sbcglobal.net/Blip
>
> Looks like basic setup will work for Daylight Fireballs without sun
>
> shielding!
>
> YCSentinel
>
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