2012-05-21 Annular

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2012-05-21 Annular

Postby NullModel » Thu May 24, 2012 8:02 pm

Script used to operate a Nikon CoolPix 4500 camera. Digiscoping through a Meade 1000 mm lens and 25 mm eyepiece.
Wanted to get an every two minute exposure centered on maximum eclipse. Minimum safe time between exposures
with this camera is only 30 seconds. Some times it takes a long time to finish an exposure. It did properly trigger
at the correct time with this safe interval. I believe one of these exposures was missed in the sequence when I had
the camera disconnected for manual triggering. This camera shoots blind when connected to the MacBook Pro,
so I did disconnect it periodically between events in the script to verify tracking and re-center the image.
Fortunately the tracking was fairly good and all images were well within the field of view.

The only defect in this sequence is missing longer exposure times at deeper eclipse for limb darkening.
I thought I was going to be able to manually override SEM, but it always reset to 1/1000 s
I did manage to get a couple of manual photos with the camera disconnected from the MacBook Pro.
Didn't get enough practice time in to recognize this situation.

The FM2 notes in the comments are prompts for the manual operation of a Nikon FM2 camera
for a multiple exposure photograph at 7 minute intervals.

Results at: http://www.hiram.ws/astro/eclipse/solar/2012/index.html

--Hiram

###########################################################################################################

RISE,2012/05/21,12:36:29
C1, 2012/05/21,00:13:07.4
C2, 2012/05/21,01:27:06.3
MAX, 2012/05/21,01:29:25.0
C3, 2012/05/21,01:31:38.5
C4, 2012/05/21,02:36:38.6
SET, 2012/05/21,03:25:25

# GPS says: 40 16.84 N 121 08.56W 4743 feet

EXPMODM,C1,-,01:30.0,Nikon Coolpix, ,7.5, , , , , ,ExpModeM C1 -01m30s
TAKEPIC,C1,-,01:20.0,Nikon Coolpix,1/1000,7.5,100,0.000,JPG-F ,None,N,SetExp F7.5
# TAKEPIC,C1,-,00:30.0,Nikon Coolpix,1/2000,3.1,100,0.000,JPG-F,None,N,1/2000 f3.1
RELEASE,C1,-,01:00.0,Nikon Coolpix, , , , , , , ,C1 -01m00s FM2 -18s 17:12:25
RELEASE,C1,-,00:00.0,Nikon Coolpix, , , , , , , ,C2 -00m00s
RELEASE,C1,+,01:00.0,Nikon Coolpix, , , , , , , ,C2 +01m00s
RELEASE,C1,+,03:00.0,Nikon Coolpix, , , , , , , ,C2 +03m00s
RELEASE,C1,+,05:00.0,Nikon Coolpix, , , , , , , ,C2 +05m00s FM2 -1m 18s 17:19:25
RELEASE,C1,+,07:00.0,Nikon Coolpix, , , , , , , ,C2 +07m00s
RELEASE,MAX,-,01:09:00.0,Nikon Coolpix, , , , , , , ,MAX -01h09m00s
RELEASE,MAX,-,01:07:00.0,Nikon Coolpix, , , , , , , ,MAX -01h07m00s
RELEASE,MAX,-,01:05:00.0,Nikon Coolpix, , , , , , , ,MAX -01h05m00s
RELEASE,MAX,-,01:03:00.0,Nikon Coolpix, , , , , , , ,MAX -01h03m00s FM2 17:26:25
RELEASE,MAX,-,01:01:00.0,Nikon Coolpix, , , , , , , ,MAX -01h01m00s
RELEASE,MAX,-,00:59:00.0,Nikon Coolpix, , , , , , , ,MAX -00h59m00s
RELEASE,MAX,-,00:57:00.0,Nikon Coolpix, , , , , , , ,MAX -00h57m00s FM2 -1m 17:33:25
RELEASE,MAX,-,00:55:00.0,Nikon Coolpix, , , , , , , ,MAX -00h55m00s
RELEASE,MAX,-,00:53:00.0,Nikon Coolpix, , , , , , , ,MAX -00h53m00s
RELEASE,MAX,-,00:51:00.0,Nikon Coolpix, , , , , , , ,MAX -00h51m00s
RELEASE,MAX,-,00:49:00.0,Nikon Coolpix, , , , , , , ,MAX -00h49m00s FM2 17:40:25
RELEASE,MAX,-,00:47:00.0,Nikon Coolpix, , , , , , , ,MAX -00h47m00s
RELEASE,MAX,-,00:45:00.0,Nikon Coolpix, , , , , , , ,MAX -00h45m00s
RELEASE,MAX,-,00:43:00.0,Nikon Coolpix, , , , , , , ,MAX -00h43m00s FM2 -1m 17:47:25
RELEASE,MAX,-,00:41:00.0,Nikon Coolpix, , , , , , , ,MAX -00h41m00s
RELEASE,MAX,-,00:39:00.0,Nikon Coolpix, , , , , , , ,MAX -00h39m00s
RELEASE,MAX,-,00:37:00.0,Nikon Coolpix, , , , , , , ,MAX -00h37m00s
RELEASE,MAX,-,00:35:00.0,Nikon Coolpix, , , , , , , ,MAX -00h35m00s FM2 17:54:25
RELEASE,MAX,-,00:33:00.0,Nikon Coolpix, , , , , , , ,MAX -00h33m00s
RELEASE,MAX,-,00:31:00.0,Nikon Coolpix, , , , , , , ,MAX -00h31m00s
RELEASE,MAX,-,00:29:00.0,Nikon Coolpix, , , , , , , ,MAX -00h29m00s FM2 -1m 18:01:25
RELEASE,MAX,-,00:27:00.0,Nikon Coolpix, , , , , , , ,MAX -00h27m00s
RELEASE,MAX,-,00:25:00.0,Nikon Coolpix, , , , , , , ,MAX -00h25m00s
RELEASE,MAX,-,00:23:00.0,Nikon Coolpix, , , , , , , ,MAX -00h23m00s
RELEASE,MAX,-,00:21:00.0,Nikon Coolpix, , , , , , , ,MAX -00h21m00s FM2 18:08:25
RELEASE,MAX,-,00:19:00.0,Nikon Coolpix, , , , , , , ,MAX -00h19m00s
RELEASE,MAX,-,00:17:00.0,Nikon Coolpix, , , , , , , ,MAX -00h17m00s
RELEASE,MAX,-,00:15:00.0,Nikon Coolpix, , , , , , , ,MAX -00h15m00s FM2 -1m 18:15:25
RELEASE,MAX,-,00:13:00.0,Nikon Coolpix, , , , , , , ,MAX -00h13m00s
RELEASE,MAX,-,00:11:00.0,Nikon Coolpix, , , , , , , ,MAX -00h11m00s Memory card change
RELEASE,MAX,-,00:09:00.0,Nikon Coolpix, , , , , , , ,MAX -00h09m00s
RELEASE,MAX,-,00:07:00.0,Nikon Coolpix, , , , , , , ,MAX -00h07m00s FM2 18:22:25
RELEASE,MAX,-,00:05:00.0,Nikon Coolpix, , , , , , , ,MAX -00h05m00s
RELEASE,MAX,-,00:03:00.0,Nikon Coolpix, , , , , , , ,MAX -00h03m00s
RELEASE,C2,-,00:11.0,Nikon Coolpix, , , , , , , ,C2 -00m18s
RELEASE,C2,+,00:19.0,Nikon Coolpix, , , , , , , ,C2 +00m19s
RELEASE,C2,+,00:49.0,Nikon Coolpix, , , , , , , ,C2 +00m49s
RELEASE,C2,+,01:19.0,Nikon Coolpix, , , , , , , ,C2 +01m19s
RELEASE,C2,+,01:49.0,Nikon Coolpix, , , , , , , ,C2 +01m49s
RELEASE,C2,+,02:19.0,Nikon Coolpix, , , , , , , ,C2 +02m19s - MAX -00s FM2 18:29:25
RELEASE,C2,+,02:49.0,Nikon Coolpix, , , , , , , ,C2 +02m49s - MAX +30s
RELEASE,C2,+,03:19.0,Nikon Coolpix, , , , , , , ,C2 +03m19s
RELEASE,C2,+,03:49.0,Nikon Coolpix, , , , , , , ,C2 +03m49s
RELEASE,C2,+,04:19.0,Nikon Coolpix, , , , , , , ,C2 +04m19s - C3 -13s
RELEASE,C2,+,04:49.0,Nikon Coolpix, , , , , , , ,C2 +04m49s - C3 +09s
RELEASE,MAX,+,03:00.0,Nikon Coolpix, , , , , , , ,MAX +03m00s
RELEASE,MAX,+,05:00.0,Nikon Coolpix, , , , , , , ,MAX +05m00s
RELEASE,MAX,+,07:00.0,Nikon Coolpix, , , , , , , ,MAX +07m00s FM2 18:36:25
RELEASE,MAX,+,09:00.0,Nikon Coolpix, , , , , , , ,MAX +09m00s
RELEASE,MAX,+,11:00.0,Nikon Coolpix, , , , , , , ,MAX +11m00s
RELEASE,MAX,+,13:00.0,Nikon Coolpix, , , , , , , ,MAX +13m00s FM2 -1m 18:43:25
RELEASE,MAX,+,15:00.0,Nikon Coolpix, , , , , , , ,MAX +15m00s
RELEASE,MAX,+,17:00.0,Nikon Coolpix, , , , , , , ,MAX +17m00s
RELEASE,MAX,+,19:00.0,Nikon Coolpix, , , , , , , ,MAX +19m00s
RELEASE,MAX,+,21:00.0,Nikon Coolpix, , , , , , , ,MAX +21m00s FM2 18:50:25
RELEASE,MAX,+,23:00.0,Nikon Coolpix, , , , , , , ,MAX +23m00s
RELEASE,MAX,+,25:00.0,Nikon Coolpix, , , , , , , ,MAX +25m00s
RELEASE,MAX,+,27:00.0,Nikon Coolpix, , , , , , , ,MAX +27m00s FM2 -1m 18:57:25
RELEASE,MAX,+,29:00.0,Nikon Coolpix, , , , , , , ,MAX +29m00s
RELEASE,MAX,+,31:00.0,Nikon Coolpix, , , , , , , ,MAX +31m00s
RELEASE,MAX,+,33:00.0,Nikon Coolpix, , , , , , , ,MAX +33m00s
RELEASE,MAX,+,35:00.0,Nikon Coolpix, , , , , , , ,MAX +35m00s FM2 19:04:25
RELEASE,MAX,+,37:00.0,Nikon Coolpix, , , , , , , ,MAX +37m00s
RELEASE,MAX,+,39:00.0,Nikon Coolpix, , , , , , , ,MAX +39m00s
RELEASE,MAX,+,41:00.0,Nikon Coolpix, , , , , , , ,MAX +41m00s FM2 -1m 19:11:25
RELEASE,MAX,+,43:00.0,Nikon Coolpix, , , , , , , ,MAX +43m00s
RELEASE,MAX,+,45:00.0,Nikon Coolpix, , , , , , , ,MAX +45m00s
RELEASE,MAX,+,47:00.0,Nikon Coolpix, , , , , , , ,MAX +47m00s
RELEASE,MAX,+,49:00.0,Nikon Coolpix, , , , , , , ,MAX +49m00s
NullModel
 
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Location: Santa Cruz CA

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