CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date: 2005 Sept 21
Observer:  KSB, AG
LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20050921.xxx
Temp.:   32° C
RH (%): 55% -> 92%
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
23:37
0
zenith E
bias


79

6-10
23:50
5
"
E
flat


2754
slewed to beta Oph; counts 4750 in 3rd exp, 6473 in 4th
11
0:04
300
+0:46
E
Th-Ar


101

12
0:17
300
+0:59
E
beta Oph
K2 III
2.77
143
RV std               #13  Th-Ar  0:25   101
14
0:45
3600
-0:18
E
HD 183656
B6 sh
6.1
88
                          #15  Th-Ar   1:48  103
16
2:08
300
-0:07
E
alpha Cyg
A2 Ia
1.25
191
tweak focus        #17 Th-Ar  2:15   102    reset offsets
18
2:30
3600
-0:03
E
60 Cyg
B1 Ve
5.4
115
                           #19 Th-Ar  3:33   103
20
3:53
3600
+0:25
E
HD 208682
B2.5 Ve
5.9
91
fog starting; focus problems        #21  Th-Ar  4:57  103
22-26
5:05
4
zenith
E
flat


2705
closing up - RH -> 92% ;   no second shift observer
27-31
5:17
0
"
E
bias


82