CCD Observing Log of Ritter Observatory
Page  1 of  

Echelle settings UT Date:  13 Feb 2005
Observer:  NDM, DRL
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050213.*
Temp.:   RH (%):  72 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
01-06
23:26
0

E
Bias


73
Cirrus clds low SW
07
23:28
0

L
Bias (5x)


131

08
23:39
30

L
Flat (5x)


4558

09-13
23:40
4

E
Flat


4760

14
23:58
300

E
Th-Ar


87

15
0:25
500
+3:43
E
Alpha Cas
K0-IIIa
2.23
244
#16 0:38 Th-Ar      Focused in
17
1:12
600
-0:02
E
Beta Ori
B8Ia
0.12
498
#18 1:25 Th-Ar
19
1:36
180

L
Fe-Ar


168

20
1:57
1800
+0:34
L
23 Ori
B1V
5.00
505
#21 2:30 Fe-Ar
22

300

E
Th-Ar




23
3:00
2400
+1:21
E
Zeta Tau
B4IIIp
3.03
152
#24 3:44 Th-Ar
25-29
3:56
4

E
Flat


4525

30
4:00
30

L
Flat (5x)


5011

31-35
4:09
0

E
Bias


73

36
4:09
0

L
Bias (5x)


132