CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  17 May 2005
NDMObserver:  
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050517.*
Temp.:  19C RH (%):  63 Grating 6 Wavelength H alpha
Tilt 3
Echelle Tilt 21.95 Slit 275 Sky Conditions:  Brk clds/scatt clds/clear
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
1:26
0

E
Bias


74
I think a hole is coming.
06
1:28
0

L
Bias 5X


133

07-11
1:38
4

E
Flat


3299

12
1:39
5

L
Flat 5X


3880

13
2:34
300

E
Th-Ar


101

14
2:44
900
+3:04
E
epsilon Leo
G1IIab
3.0
184
Shooting through a hole.... #15 3:02 Th-Ar
16
3:15
3600
+0:47
E
kappa Dra
B6IIIpe
3.9
190
A patch of clds during exposure ... #17 4:18 Th-Ar
18
4:41
1200
-1:13
E
delta Sco
B0.3IVe
1.6
340
Pretty clear ... RH 85% ... #19 5:03 Th-Ar #20 5:16 Ne
21
5:21
240 -1:13
L
zeta Oph
O9.5Vn
2.6
1692
#22 5:26 Ne  #23 5:36 Th-Ar
24
5:44
3600
-0:36
E
chi Oph
B1.5Ve
4.4
206
RH reads 90% but things feel clammy ... #25 6:47 Th-Ar
26
7:14
600
-3:20
E
alpha Cyg
A2Ia
1.3
196
RH 93%, last object
27
7:27
300

E
Th-Ar

100

28
7:44
0

E
Bias


78

33
7:55
5

L
Flat 5x


3983

34-38
7:56
4

E
Flat


3443

39
8:13
240

L
Dark 8x