CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 Aug 28
 Observer:  NDM
 LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure:  20050828.*
 Temp.:  33 C
 RH (%):  65 Grating: 6 λc: Hα Tilt: 3o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions:  Clear/light haze
 Slit: 255 Det. Temp.: -95oC Focus: 5.70


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
 Comments
01-05
 0:49
 0
E
 Bias

81
 Echelle only tonight. Using formerly LDS fiber.
06-10
 1:10
 3
E
 Flat

4203
 Changed fiber no. in header generator to 3.
11
 1:29
 300
E
 Th-Ar

102
 Largest mask is in front of flat lamp. Th-Ar OK.
12
 1:40
 300
 +0:48
 E
 beta Oph
 K2III
 2.8
 81
 Other hole, eh?
13
 2:28
 300
 +1:37
 E
 "
 "
 "
 111
 Bright reflection at center of RH fiber; tried refocusing
14
 2:44
 300
 +1:53
 E
 "
 "
 "
 94
 Adjust focus OUT
15
 3:01
 300
 +2:09
 E
 "
 "
 "
 90
 In again; move down on fiber, get lower cts, still bright dot in ctr
16
 3:12
 300
 +2:21
 E
 "
 "
 "
 93
 Bright dot, low counts, faint hint of spikes
17
 3:25
 300
 +2:34
 E
 "
 "
 "
 93
 New focus (in, out again) but similar. Low on fiber.
18
 3:48
 300
 -0:01
 E
 alpha Cyg
 A2Ia
 1.3
 102
19
 4:52
 300
 +1:03
 E
 "
 "
 "
 114
 In upper lobe, bright central dot, faint spider
20
 5:06
 300
 +1:17
 E
 "
 "
 "
 101
21
 5:46
 300
 +1:57
 E
 "
 "
 "
 347
 One more try .. same focus as left fiber, same y .. FOUND IT
22
 5:57
 300
E
 Th-Ar

103
 OK, just one science exposure!
23
 6:06
 300
 +2:17
 E
 alpha Cyg
 A2Ia
 1.3
 312
24
 6:15
 300
E
 Th-Ar

103
25
 6:24
 300
 +2:35
 E
 alpha Cyg
 A2Ia
 1.3
 301
 Focus INslightly. Worse, but conditions may be deteriorating.
26
 6:32
 300
E
 Th-Ar


Time to quit. Backing up only #1-11 and 22-36.
27-31
 6:47
 4
E
 Flat

4385
 RH 89%
  32-36 6:59  0    E  Bias      82