CCD Observing Log of Ritter Observatory | |
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Echelle settings | UT Date: 2004-Jan-17 | Observer: NDR | LDS Settings | ||||
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X-Disp Tilt 235.0 | Wavelength H alpha | Exposure: 20040117.* | Temp.: 1 C |
RH (%): 70 | Grating 6 | Wavelength 5500 A | Tilt 359 |
Echelle Tilt 20.55 | Slit 275 | Sky Conditions:
mostly clear |
Det. Temp. -95C | Slit ~200 microns | Focus 6.45 |
Exp # |
(UT) |
(s) |
Start |
|
|
|
Mag |
(/pix) |
Comments |
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01-05 |
22:43 |
0 |
|
E |
Bias |
|
|
72 |
Light dusting of snow on ground. |
06-10 |
22:58 |
4 |
|
E |
Flat |
|
|
3367 |
We'll see how long the sky conditions hold |
11 |
23:22 |
300 |
|
E |
Th-Ar |
|
|
85 |
|
12 |
23:29 |
300 |
+1:00 |
E |
alpha Cas |
K0IIIa |
2.23 |
96 |
RV Standard- focus and seeing bad- tweaked
focus- try again |
13 |
23:38 |
600 |
+1:10 |
E |
alpha Cas |
K0IIIa |
2.23 |
167 |
seeing bad- staying to bright
targets #14 23:58 Th-Ar |
15 |
0:06 |
1800 |
+1:21 |
E |
gamma Cas |
B0IVe |
2.47 |
398 |
*** #16 0:43 Th-Ar |
17 |
0:57 |
600 |
-2:05 |
E |
beta Ori |
B8Ia |
0.12 |
308 |
tweaked focus - still
uncertain #18 1:16 Th-Ar |
19 |
1:26 |
1200 |
-1:57 |
E |
epsilon Ori |
B0Ia |
1.70 |
177 |
#20 1:57 Th-Ar |
21 |
2:04 |
1500 |
-1:23 |
E |
zeta Ori |
O9.5Ib |
2.05 |
183 |
#22 2: Th-Ar |
22 |
2:39 |
300 |
|
E |
Th-Ar |
|
|
85 |
transparency and seeing horrible; some clouds-
closing |
23-27 |
2:47 |
0 |
|
E |
Bias |
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72 |
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28-32 |
3:09 |
5 |
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E |
Flat |
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3175 |
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