CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 Apr 22
Observer:  ENH/NDM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050422.*
Temp.:  17C RH (%):  56 Grating 6 Wavelength H alpha
Tilt 3
Echelle Tilt 21.95 Slit 275 Sky Conditions:  a few cirrus/more cirrus
Slit 240
Det. Temp. -95C Focus 6.28


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
01-05
0:18
0

E
Bias


74
the big hose was not attached to the telescope.
6
0:30
5

L
Flat (5x)


4203
Adjusted echelle settings today - same position, different numbers
07-11
0:32
3

E
Flat


3188

12
0:46
0

L
Bias (5x)


130

13
0:58
300

E
Th-Ar


100
early start, so maybe....
14
1:06
1500
+3:55
E
Zeta Tau
B4 IIIp
3.0
121
started in twilight   #15 1:34 Th-Ar
16
1:50
1

L
Ne


402

17
1:52
1800
+2:18
L
HD 65875
B2.5 Ve
6.5
512
#18 2:26 Ne
19
2:48
900
-0:01
L
Phi Leo
A7 IVn
4.5
465
#20 3:05 Ne  we seriously need to get an alarm
21
3:17
300
-0:06
L
Beta Vir
F9 V
3.6
421
#22 3:24 Ne   moon nearby, RH 70%   #23 3:38 Th-Ar
24
3:46
600
+2:04
E
Alpha Leo
B7 Vn
1.35
126
#25 3:59 Th-Ar  let's try that again
26
4:11
900
+2:29
E
Alpha Leo
    "
"
143
#27 4:29 Th-Ar 
28
4:46
3600
+0:39
E
Kappa Dra
B6 IIIpe
3.9
168
Major focus adjustment ...  #29 5:49 Th-Ar
30
6:08
1800
-1:24
E
delta Sco
B0.3IVe
1.6
183
#31 6:41 Th-Ar
32
7:06
600
-2:09
E
beta Oph
K2III
2.8
136
RV std ... counts not encouraging ... #33 7:20 Th-Ar
34
7:35
1200
-4:38
E
alpha Cyg
A2Ia
1.3
178
Haze is pretty thick ... #35 7:57 Th-Ar
36-40
8:12
4

E
Flat


4090
close
41
8:13
5

L
Flat 5x


5343

42-46
8:25
0

E
Bias


77