| CCD Observing Log of Ritter Observatory | |
Page 1 | of 1 |
| Echelle settings | UT Date: 02 Aug 2006 |
Observer: KSB, SR |
LDS Settings | ||||
|---|---|---|---|---|---|---|---|
| X-Disp Tilt: 235.0 | λc: Hα | Exposure: 20060802.xxx |
Temp. (°C): 41 |
RH (%): 73 |
Grating: 6 | λc: Hα | Tilt: 4o |
| Echelle Tilt: 21.95 | Slit: 275 | Sky
Conditions: clear, hot, very humid |
Slit: 255 | Det. Temp.: -86oC | Focus: 5.70 | ||
| Exp # |
(UT) |
(s) |
Start |
|
|
|
Mag |
(/pix) |
Comments |
|---|---|---|---|---|---|---|---|---|---|
| 1-5 |
1:25 |
0 |
zenith |
E |
bias |
83 |
|
||
| 6-10 |
1:44 |
5 |
" |
E |
flat |
3950 |
|||
| 11 |
1:57 |
300 |
" |
E |
Th-Ar |
104 |
|||
| 12 |
2:24 |
1200 |
+1:31 |
E |
delta Sco |
B0.3 IVe |
2.2 |
535 |
#13 2:49 Th-Ar
NOTE: VERY STRANGE CCD IMAGE IN DS9!! As if something is on the
CCD or in the light path. NDM notified. |
| Problem is condensation on the camera
window. Checked flat obs from previous nights - appears to have
just started on 20060730 and gotten progressively worse over the last
couple of nights. Presumably related to the extremely humid
weather conditions of the past few days. |
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No point in further observations. Closing
up. Files saved in case we can save the H alpha profile for delta
Sco (order 9 is slightly less affected). |
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Per NDM instructions, door to echelle room to be
left open in hopes of getting A/C in there to help with condensation. |
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| 3:15 |
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Closed down. |
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