CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 Feb 11
Observer:  ENH/NDM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050211.*
Temp.:  5C RH (%):  63 Grating 6 Wavelength 5500 A Tilt 359
Echelle Tilt 20.55 Slit 275 Sky Conditions:  Clear 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
01-05
23:29
0

E
Bias


72
Dome won't open due to ice, Bob called
06-10
23:43
4

E
Flat


3575
Bob opened the dome and tightened motor belt
11
0:29
300

E
Th-Ar


87
seems much colder than thermometer says!
12
0:38
600
+2:21
E
alpha Ari K2 IIIab
2.0
206
 #13  0:51 Th-Ar
14
1:07
3600
+1:21
E
psi Per
B5 Ve
4.2
146
 #15  2:10 Th-Ar
16
2:28
300
+1:04
E
beta Ori
B8 Ia
0.12
211
 #17  2:36 Th-Ar
18
2:49
600
+1:04
E
epsilon Ori
B0 Ia
1.7
173
 #19  3:02 Th-Ar
20
3:24
1200
+1:38
E
zeta Tau
B4 IIIp
3.0
132
 #21  3:46 Th-Ar
22
4:04
1200
+0:28
E
beta CMi
B8 Ve
2.9
126
 #23  4:27 Th-Ar
24
4:49
2400
-0:23
E
kappa UMa
A0 IIIn
3.6
120
 #25 5:32 Th-Ar         NDM taking over at midnight
26
5:43
2400
+0:31
E
     "
     "
"
127
#27 6:26 Th-Ar   North vane of telescope cover leaning
28
6:51
3600
+0:36
E
eta Leo
A0Ib
3.5
166
#29 8:00 Th-Ar
30-34
8:11
0

E
Bias


75
Clouding up, RH 92%. close
35-39
8:27
5

E
Flat


4181