CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 April 06
 Observer:  KSB/MJS/DRL
 LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050406.*
 Temp.:  28C RH (%):  44 Grating 6 Wavelength 5500 A Tilt 359.5
Echelle Tilt 20.55 Slit 275 Sky Conditions: cirrus, pt cldy --> clouds!
 Det. Temp. -95C Slit ~200 microns Focus 6.45


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
 Comments
1-5
 0:00
 0
 zenith
 E
 Bias

76
6
 0:04
 0
 "
 L
 Bias (5x)

127
7-11
 0:12
 4
 "
 E
 Flat

3650
12
 0:13
 10
 "
 L
 Flat (5x)

3327
13
 0:25
 300
 "
 E
 Th-Ar

102
 Oops.  Comp lamp left on during rotation.  Sorry...
14
 0:37
 180
 "
 L
 Fe-Ar

207
15
 1:05
 1200
 +2:51
 E
 zeta Tau
 B4 IIIp
 3.03
 170
 #16  Th-Ar   1:29  102
17
 1:48
 1200
 +1:44
 E
 beta CMi
 B8 Ve
 2.90
 154
 #18  Th-Ar   2:12  103
19
 2:38
 1200
 +0:16
 E
 epsilon Leo
 G1 IIab
 2.98
 182
 #20  Th-Ar   3:03  104      RV std (echelle)
21
 3:23
 300
 -1:02
 L
 beta Vir
 F9 V
 3.61
 325
 #22  Fe-Ar    3:30  211      RV std (LDS)
23
 3:48
 3600
 +1:04
 E
 eta Leo
 A0 Ib
 3.52
 222
 #24  Th-Ar   4:52  103
25
 5:08
 600
 +2:24
 E
 alpha Leo
 B7Vn
 1.35
 311
 #26  Th-Ar   5:22  103     Telluric std (echelle)
27
 5:37
 3600
 +0:27
 E
 kappa Dra
 B6IIIpe
 3.87
 199
 #28  Th-Ar   6:40  104     RH 70%
29
 7:07
 3600
 -1:26
 E
 48 Lib
 B5IIIpe
 4.88
 106
 #30  Th-Ar   8:10  102
31
 8:45
 300
 -0:26
 L
 zeta Oph
 O9.5Vn
 2.56
 1024
 #32  Fe-Ar   9:01   369
33
 9:34
 900
 -3:42
 E
 alpha Cyg
 A2Ia
 1.25
 241
 #34  Th-Ar  9:52   102
35
 10:19
 1800
 -2:45
 L
 WR140
 WC 6
 6.87
 277
 #36  Fe-Ar  10:48 195     In twilight
37
 10:54
 10
L
 Flat (5x)

3121
38-42
 10:56
 4
E
 Flat

4035
  43 11:00
 0
    L 
 Bias (5x)
      130  
44-48
 11:08
 0
E
 Bias

78