CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date: 20051111
 Observer:  GBT/NDM
 LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20051111.*
 Temp.: 14 C
 RH (%):58
 Grating: 6 λc: Hα Tilt: 3o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions: Clear
 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
 2:45
 0
E
 bias

76
 Sky finally cleared up.
06-10
 3:08
 2
E
 flat

3550
11
 3:22
 300
 +4:28
 E
 Th-Ar

122
12
 3:41
 300
 +4:47
 E
 alpha Cyg A2 Ia
 1.3
 273
 #13 3:49 Th-Ar; could not keep the star on the fiber.
14
 4:07
 900
 +0:58
 E
  gamma Cas
 B0 IVpe
 2.4
 281
 #15 4:27 Th-Ar
16
 4:46
 1800
 +2:01
 E
  kappa Cas
 B0.7 Ia
 4.2
 157
 #17 5:19 Th-Ar
18
 5:31
 300
 +2:39
 E
  alpha Cas
 K0IIIa
 2.2
 190
 #19 5:39 Th-Ar ... Seeing is not the greatest.
20
 5:57
 3600
 -0:04
 E
 28 Tau
B8IVe var
 5.0
 137
 #21 7:00 Th-Ar
22
 7:24
 3600
 +0:43
 E
 DU Eri
 B2V:ne
 5.6
 114
 #23 8:27 Th-Ar
24
 8:38
 300
 +1:11
 E
 beta Ori B8Ia
 0.1
 441
 #25 5:45 Th-Ar
26
 9:00
 300
 +1:12
 E
 epsilon Ori B0Ia
 1.7
 170
27
 9:07
 300
 +1:19
 E
 "
 "
 "
 148
 This was inadvertent, but might as well keep it. Fixed header.
28
 9:16
 300
E
 Th-Ar

124
29
 9:27
 600
 +1:35
 E
 zeta Ori O9.5Ib
 2.0
 233
 #30 9:40 Th-Ar
31
 9:53
 3600
 +2:34
 E
 105 Tau
 B2Ve
 5.9
 125
 #32 10:56 Th-Ar
33
 11:07
 900
 +3:18
 E
 zeta Tau B2IVe
 3.0
 186
 #34 11:24 Th-Ar
35-39
 11:32
 0
E
Bias

80
40-44
 11:48
 3
E
 Flat

3833