CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  25 Sep 2006
Observer: NDM,SJR/NDM
LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20060925.*
Temp. (°C): 24
RH (%): 77
Grating: 6 λc: Hα Tilt: 4o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions: Scattered clouds
Slit: 255 Temp: -93.5oC Focus: 5.81


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
01-05
23:41
0

E
Bias


73
  Stadium lights are on
06-10
23:55
1

E
Flat


3016
  Seeing is not very good
11
00:32
300

E
Th-Ar


111

12
00:42
300
+1:35
E
beta Oph
K2III
2.77
255
Th-Ar  #13  00:51
14
1:10
1200
+1:00
E
beta Lyr
B7Vpe
3.45
202
Th-Ar  #15   1:34
16
1:55
300
-0:05
E
alpha Cyg
A2Ia
1.25
533
Th-Ar  #17   2:04   We adjusted focus out
18
2:23
2700
+0:45
E
P Cyg
B1Ia+
4.81
526
Th-Ar  #19   3:11
20
3:31
2700
-0:12
E
pi Aqr
B1Ve
4.8
194
#21 4:20 Th-Ar ... RA offset increased by 22 units
22
4:42
3600
+2:23
E
60 Cyg
B1Ve
5.4
166
RH 91% ... #23 5:45 Th-Ar
24
5:57
900
-0:18
E
gamma Cas
B0IVpe
2.4
631
RH 94%; close after this
25
6:15
300

E
Th-Ar


113
Bias level (overscan) OK throughout
26-30
6:23
0

E
Bias


78

31-35
6:35
1

E
Flat


3623