1

Extracted Observing Reports for 69.D-0701(B): Night information

Telescope: Yepun (UT4)
Instrument: FORS2

Created on 2004-04-14 15:24:14
This is a summary of night log information extracted for all those nights which got observations for your run and which are contained in this data delivery.

This information has been extracted from a database which contains information ingested during the nights. The database is also maintained to reflect e.g. a posteriori updates of the OB grading.

This report is structured into two parts:
- breakdown by nights (this page)
- breakdown by OBs.

This page is an extraction of general night information for all nights with OBs in this data delivery. Usually an OB will produce files but there are exceptions, e.g. when an OB is aborted due to degrading conditions. Therefore there might be entries in this nightlog summary which do not correspond to any of the files contained in your data package.

On the other hand there is a small chance of having OBs or files delivered without nightlog entries. The most likely cause could be operational problems during the night.
General information about 69.D-0701(B)
1a | Night summary
Date Comments OBs | grade
(this run only)
2002-04-11 None 118243 | A
118258 | A
2002-08-30 None 200120204 | B
200120205 | B
200120206 | B
2002-09-14 02:16 of weather loss time due to wind, because only targets in the queues for northern directions, which were precluded by high wind speeds.
118259 | X
118259 | A

1b | Night details
  [ down ]
2002-04-11
Night statistics
Night start : 23:47
Night end : 09:38
Night length: 09:51
Night conditions
Seeing plot Sky transparency plot All ambient conditions (java enabled browser required)
  below 20: clear; above 50: clouds; ... more ... help
Seeing : 0.5-2.0"
Wind : 5-16 m/s (N-NE)
Humidity : 6-80%
Temperature: 9-13 C
Comments :
Weather report
22:35 CL : few clouds very low at north west
04:30 CL WI :
07:00 CL WI HU :
07:45 CL WI HU : UTs closed due to HU

(Legend:
PH-Photometric, CL-CLEAR, TN-Thin cirrus, TK-Thick cirrus,
CY-Cloudy, WI-Windy, HU-Humid, RN-Rain, SN-Snow,
EQ-Earthquake, OT-other; ZP = zeropoints)

General comments
None
Executed OBs
118243 (UT start 02:09)
118258 (UT start 02:28)

[ up ] [ down ]
2002-08-30
Night statistics
Night start : 23:46
Night end : 09:36
Night length: 09:50
Night conditions
Seeing plot Sky transparency plot All ambient conditions (java enabled browser required)
  below 20: clear; above 50: clouds; ... more ... help
Seeing : 0.5-2.0
Wind : 1-11 M/S (N, NE)
Humidity : 9-12%
Temperature: 6-12
Comments :
Weather report
23:00 PH :
00:00 PH :
01:00 PH :
02:00 PH :
03:00 PH :
04:00 PH :
05:00 PH :
06:00 PH :
07:00 PH :
08:00 PH :
09:00 PH :

(Legend:
PH-Photometric, CL-CLEAR, TN-Thin cirrus, TK-Thick cirrus,
CY-Cloudy, WI-Windy, HU-Humid, RN-Rain, SN-Snow,
EQ-Earthquake, OT-other; ZP = zeropoints)

General comments
None
Executed OBs
200120204 (UT start 07:12)
200120205 (UT start 06:05)
200120206 (UT start 04:32)

[ up ]  
2002-09-14
Night statistics
Night start : 23:50
Night end : 09:23
Night length: 09:32
Night conditions
Seeing plot Sky transparency plot All ambient conditions (java enabled browser required)
  below 20: clear; above 50: clouds; ... more ... help
Seeing : 0.6-1.8"
Wind : 7-16 m/s (N)
Humidity : 5-10%
Temperature: 9-12 degrees
Comments :
Weather report
22:40 TN WI : some thin on different directions
23:35 TN : still some thin on different directions
01:30 TN WI :
05:10 TN : patchy

(Legend:
PH-Photometric, CL-CLEAR, TN-Thin cirrus, TK-Thick cirrus,
CY-Cloudy, WI-Windy, HU-Humid, RN-Rain, SN-Snow,
EQ-Earthquake, OT-other; ZP = zeropoints)

General comments
02:16 of weather loss time due to wind, because only targets in the queues for northern directions, which were precluded by high wind speeds.
Executed OBs
118259 (UT start 01:35)
118259 (UT start 05:29)