CCD Observing Log of Ritter Observatory
Page  1 of  

Echelle settings UT Date:  2005 May 09
 Observer:  NDR
 LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050509.*
 Temp.:  26 C
 RH (%):  50 Grating 6 Wavelength H alpha
 Tilt 3
Echelle Tilt 21.95 Slit 275 Sky Conditions:  few cirrus
 Slit 240
Det. Temp. -95C Focus 6.28


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
 Comments
01-05
 1:17
 0
E
 Bias

74
06
 1:22
 0
L
 Bias

134
07-11
 1:28
 3
E
 Flat

3235
12
 1:31
 5
L
 Flat

4522
13
 1:57
 300
E
 ThAr

100
14
 2:04
 600
 +1:53
 E
 epsilon Leo
 G1IIab
 2.98
 123
 rv std  #15 2:18 ThAr
16
 2:40
 3600
 -0:20
 E
 kappa Dra
 B6IIIpe
 3.87
 190
 #17 3:43 ThAr
18
 3:55
 600
 +0:04
 E
 alpha Vir
 B1V/B3V
 0.98
 313
 #19 4:08 ThAr
20
 4:29
 1
L
 Ne

370
21
 4:31
 900
 -1:27
 L
 theta Crb
 B6Vnne
 4.14
 855
 #22 4:47 (L) Ne     #23 4:57 (E) ThAr
24
 5:05
 3600
 -1:18
 E
 48 Lib
 B5IIIpe
 4.88
 118
 #25 6:07 ThAr
26
 6:21
 1200
 -0:04
 E
 delta Sco
 B0.3IVe
 1.6
 186
 #27 6:46 (E) ThAr    #28 7:06 (L) Ne
29
 7:07
 900
 -3:08
 L
 o Aql
 F8V
 5.11
 395
 rv std (LDS)  #30  Ne
31
 7:37
 3600
 -2:56
 L
 HD 191612
 O6-O8f?p
 7.84
 350
 #32 8:39 (L) Ne    #33 8:50 (E) ThAr
34
 8:58
 3600
 -1:44
 E
 P Cyg
 B1Ia+
 4.81
 118
 abort at 2660 seconds (start of twilight- hard to distinguish on ST7- very faint) #35 9:45 ThAr
36
 9:53
 600
 -1:11
 E
 alpha Cyg
 A2Iae
 1.25
 265
 going to try in twilight
37
 10:07
 300
E
 ThAr

106
 It appears the cirrus clouds stuck around all night, but it's a
38-42
 10:15
 0
E
 Bias

77
 little clearer now
43
 10:15
 0
L
 Bias

130
 humidity dropped ~5% through night, then rose to 58%
44
 10:16 5   L
 Flat
     4467
  
45-49
 10:27
 3
E
 Flat

3963