CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  3 Jul 2005
Observer:  NDM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050703.*
Temp.:  27C RH (%):  65 Grating 6 Wavelength H alpha
Tilt 3
Echelle Tilt 21.95 Slit 275 Sky Conditions:  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
1:51
0

E
Bias


79

06
1:54
0

L
Bias 5X


124

07-11
2:05
5

E
Flat


3954

12
2:06
6

L
Flat


2099

13
2:21
300

E
Th-Ar


93
Seeing much better than last night; diffraction spikes clear
14
2:29
3600
+3:06
E
kappa Dra
B6IIIpe
3.9
202
#15 3:33 Th-Ar
16
3:53
1800
+1:04
E
delta Sco
B0.3IVe
1.6
198
#17 4:26 Th-Ar
18
4:43
3600
+1:28
E
chi Oph
B1.5Ve
4.4
213
#19 5:47 Th-Ar
20
5:59
600
+1:28
E
beta Oph
K2III
2.8
137
#21 6:12 Th-Ar
22
6:26
900
-1:03
E
alpha Cyg
A2Ia
1.3
359
Lotsa cirrus ... RH 85% ... #23 6:44 Th-Ar
24-28
7:07
0

E
Bias


82
Clds are thicker. Close.
29
7:20
6

E
Flat


4317
Deleting LDS files; no stellar data taken.
30-33
7:23
5

E
Flat


3594
Erring on side of caution re flat exposure