CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date: 2005 Sept 28
 Observer:  KSB,AG,JH/NDM
 LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20050928.xxx
 Temp.: 26° C
 RH (%):  55%
 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
1-5
 23:12
 0
 zenith
 E
 bias

79
 AG = Adam Gray;  JH = Jeremiah Holt
6
 23:45
 20
 "
 E
 flat (test)

5769
 flat lamp very dim tonight?  had to bump up exposure
7-10
 23:45
 15
 "
 E
 flats

4370
 a little high on test exp so dropped time a bit ... see below
11
 0:00
 300
 "
 E
 Th-Ar

99
 after comp, slew to Vega and reset offsets OK
12
 0:30
 600
 +3:23
 E
 delta Sco
B0.3 IVe
 1.6
 118
 #13  0:42   Th-Ar  
14
 0:56
 300
 +2:06
 E
 betaOph
K2 III
 2.77
 182
 #15  1:04   Th-Ar          RV std
16
 1:23
 3600
 +0:46
 E
 HD 183656
 B6 sh
 6.1
 96
 #17   2:26  Th-Ar
18
 2:40
 900
 +1:43
 E
 alpha Aql
 A7 Vnn
 0.77
 1472
 #19   2:58  Th-Ar          Telluric std
20
 3:12
 300
 +1:24
 E
 alpha Cyg
 A2 Ia
 1.25
 220
 #21   3:19  Th-Ar          reset telescope offsets again
22
 3:32
 3600
 +1:24
 E
 60 Cyg
 B1 Ve
 5.4
 109
 #23   4:34  Th-Ar
24
 4:49
 900
 -1:13
 E
 gamma Cas
 B0 IVpe
 2.4
 231
 #25   5:08  Th-Ar         RH at 83%
26
 5:43
 3600
 +0:39
 E
 LQ And
 B4 Vne
 6.5
 89
 #27   6:46 Th-Ar ... NDM suggests omitting #6 from reduction
28
 7:00
 300
 +1:15
 E
 alpha Cas
 K0IIIa
 2.2
 120
 Time out to check focus ... RH 91.5%
29
 7:10
 300
 +1:25
 E
 "
 "
 "
 189
 Focus OUT, much better.  #30 7:18 Th-Ar
31
 7:30
 2700
 -1:11
 E
 ψ Per B5Ve
 4.3
 137
 RH 94%. Overriding limit because of time-critical obs'ns.
32
 8:18
 300
E
 Th-Ar

102
33
 8:29
 2400
 -0:44
 E
 48 Per
 B3Ve
 4.0
 143
 #34 9:12 Th-Ar ... RH 95%
35-39
 9:20
 0
E
 Bias

82
40-44
 9:32
 4
 zenith
 E
 Flat

3756