CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2004 - Nov 29 Observer:  NDR LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20041129.*** Temp.:  4 C RH (%):  75 Grating 6 Wavelength H alpha Tilt 3o
Echelle Tilt 20.55 Slit 275 Sky Conditions:  mostly clear Det. Temp. -95C Slit ~200 microns Focus 6.25


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
 Comments
01-05
 22:39
 0
E
 Bias

74
 stadium lights on
06-10
 22:52
 2
E
 Flat

4081
11
 23:18
 300
E
 Th-Ar

98
12
 23:26
 300
 +1:43
 E
 alpha Cyg
 A2Ia
 1.25
 109
 counts low- do again                #13 23:33  Th-Ar
14
 23:41
 900
 +1:58
 E
 alpha Cyg
 A2Ia
 1.25
 171
 stadium lights off                      #15   0:07  Th-Ar
16
 00:14
 600
 +1:29
 E
 epsilon Peg
 K2Ib
 2.39
 120
                                                  #17   0:39   Th-Ar
18
 00:48
 1200
 -1:10
 E
 gamma Cas
 B0IVe
 2.47
 362
 tweaked focus; clouds on way in; keeping to bright targets
19
 1:16
 300
E
 ThAr

100
 RH -> 92% and rising rapidly; closing due to lack of bright targets
20-24
 01:24
 0
E
 Bias

73
25-29
 01:40
 2
E
 Flat

4205