1

Extracted Observing Reports for 71.D-0141(A): Night information

Telescope: Antu (UT1)
Instrument: FORS1
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 71.D-0141(A)
1a | Night summary
Date Comments OBs | grade
(this run only)
2003-03-27 None 135251 | A
136085 | C
136085 | A
2003-05-07 None 135268 | X
136084 | A
2003-05-22 Technical losses with ISAAC:
- 10 min to re-allignt the LW slit
- 38 min due to a loss of the slit drawing (see PPRS-9710)
Note that some additional preparation time losses might be included after the reision of the FC for programme 71.D-0377(A) - see USG-7500.
136085 | A
2003-06-03 Weather downtime (clouds) of 02:20 added to previous nights night report.
- switched from FORS1 to ISAAC at 4:05UT
- switched back to FORS1 at 9:28UT
- last switch in twilight to perform ISAAC sky flat
135251 | A
136085 | A
2003-06-18 None 135251 | X
136085 | A
2003-07-06 None 135251 | A
136085 | C
136085 | A
2003-07-07 None 135251 | A
136085 | A
2003-07-28 UT 23:48 switched to ISAAC:
FORS1 did not work at the startup ... workstation was rebooted and FORS1 tested and finally working. We will switch back to FORS as soon as A queue targets become visible.
UT 03:14 switched to FORS1
135251 | C
136085 | C
2003-07-30 None 135251 | A
136085 | A
136085 | A
2003-08-19 None 135251 | A
136085 | A
136085 | A
2003-08-22 Odd even column effect results: LL; 0.991, UL 0.980, UR 1.009, LR 1.007. The mean count levels were 6000 ADU.
The DIT=5.0s and DIT=750s NDR SW darks initially were not reduced by the pipeline. They were resubmitted and were reduced OK.
The pipeline failed to reduce the SW_Arcs_MR_slit1 data, grating=1.7274. We resubmitted it but got the error 'failed to determine dispersion solution'. The arc only has 3 obvious lines on it. Setting was not reduced.
Technical time to measure inst focus values
136085 | A
136085 | A
2003-08-27 20 min lost see PPRS 10617, 10618
preparation lost due to wrong coordinates given by the astronomer for Mars and to the optimization of integration time and position angle
20 min technical time for change of 1 filter
135251 | X
136085 | A
2003-09-14 Technical time 23:50-02:56 was to test new pipeline and sequencer code mods. There were no available OBs in the A Qs.
Technical loss 06:32-06:39 incorrect DPR.TYPE keywords in header
135251 | A
136085 | A
136085 | A
136085 | A
136085 | A
2003-09-26 None 135251 | X
136085 | A
136085 | A
2003-09-27 Tests please ignore.
ISAAC_LWS_LR_ARCS_0001-0006.fits
ISAAC_LWS_MR_ARCS_0013-0027.fits
ISAAC_LWS_SCI_0001-0014.fits
ISAAC_LWS_SCI_0015-0019_CUBE1.fits
Another night with highly variable seeing, with conditions improving during the second half.
Technical tests were done partly due to the completely empty queues at the beginning of the night.
135251 | A
136085 | C
136085 | A
136085 | A
2003-09-28 Daytime calibrations checked ok.
FORS1 CCD monthly test performed.
 135251 | X
136085 | A

1b | Night details
2003-03-27
Night statistics
Night start : 23:59
Night end : 09:33
Night length: 09:33
Night conditions
Seeing : 0.4-1.8"
Wind : 2-14m/s S
Humidity : ~20%
Temperature: ~14C
Comments :
Weather report
23:00 PH : FORS Zp

(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
135251 (UT start 09:33)
136085 (UT start 06:42)
136085 (UT start 07:56)

2003-05-07
Night statistics
Night start : 23:27
Night end : 09:48
Night length: 10:21
Night conditions
Seeing : 0.6-1.9"
Wind : 7-14 m/s N-NNE
Humidity : 4-13%
Temperature: 11-13 C
Comments :
Weather report
22:30 CL :

(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
135268 (UT start 09:49)
136084 (UT start 23:23)

2003-05-22
Night statistics
Night start : 23:22
Night end : 09:54
Night length: 10:32
Night conditions
Seeing :
Wind : N-NE
Humidity :
Temperature:
Comments :
Weather report
22:00 TN :
00:30 CL :

(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
Technical losses with ISAAC:
- 10 min to re-allignt the LW slit
- 38 min due to a loss of the slit drawing (see PPRS-9710)
Note that some additional preparation time losses might be included after the reision of the FC for programme 71.D-0377(A) - see USG-7500.
Executed OBs
136085 (UT start 00:07)

2003-06-03
Night statistics
Night start : 23:21
Night end : 09:59
Night length: 10:37
Night conditions
Seeing : 0.5-2.5
Wind : 0-12m/s
Humidity : <8%
Temperature: 7.5
Comments :
Weather report
22:50 CL CL CL :
04:30 CL CL CL :
04:41 PH : With ISAAC and FORS
08:00 CL :
10:20 CL :

(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
Weather downtime (clouds) of 02:20 added to previous nights night report.
- switched from FORS1 to ISAAC at 4:05UT
- switched back to FORS1 at 9:28UT
- last switch in twilight to perform ISAAC sky flat
Executed OBs
135251 (UT start 01:04)
136085 (UT start 23:07)

2003-06-18
Night statistics
Night start : 23:22
Night end : 10:03
Night length: 10:40
Night conditions
Seeing : 0.42-1.4"
Wind : 0-7 m/s (SW-S-SE)
Humidity : 5-11%
Temperature: 11.4-14 deg. C
Comments :
Weather report
22:00 CL :
03:00 CL :
07:35 CL :

(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
135251 (UT start 10:02)
136085 (UT start 08:56)

2003-07-06
Night statistics
Night start : 23:27
Night end : 10:04
Night length: 10:36
Night conditions
Seeing : 0.5-1.8"
Wind : 4-12 m/s N
Humidity : 22-33%
Temperature: 8-9 C
Comments :
Weather report
22:30 CL :
08:00 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
135251 (UT start 08:21)
136085 (UT start 08:33)
136085 (UT start 09:32)

2003-07-07
Night statistics
Night start : 23:28
Night end : 10:04
Night length: 10:36
Night conditions
Seeing : 0.45-1.2"
Wind : 2-7m/s NNW-W
Humidity : 13-40%
Temperature: 7-10 C
Comments :
Weather report
22:30 CL :
23:00 PH : Isaac Zp

(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
135251 (UT start 10:31)
136085 (UT start 08:10)

2003-07-28
Night statistics
Night start : 23:35
Night end : 09:59
Night length: 10:24
Night conditions
Seeing : 0.35-1.2"
Wind : 0-7 m/s [E-N-E]
Humidity : 5-10%
Temperature: 10-12 deg.C
Comments :
Weather report
22:30 CL :
00:00 PH : According to ZP results on ISAAC

(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
UT 23:48 switched to ISAAC:
FORS1 did not work at the startup ... workstation was rebooted and FORS1 tested and finally working. We will switch back to FORS as soon as A queue targets become visible.
UT 03:14 switched to FORS1
Executed OBs
135251 (UT start 10:24)
136085 (UT start 08:32)

2003-07-30
Night statistics
Night start : 23:35
Night end : 09:58
Night length: 10:23
Night conditions
Seeing : 0.7-1.4"
Wind : 8-15 m/s N
Humidity : 14-23%
Temperature: 10-13 C
Comments :
Weather report
22:30 CL :

(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
135251 (UT start 10:10)
136085 (UT start 06:14)
136085 (UT start 07:23)

2003-08-19
Night statistics
Night start : 23:42
Night end : 09:46
Night length: 10:04
Night conditions
Seeing : 0.5 - 2.7 arcsec
Wind : 0 - 7 m/s
Humidity : <7%
Temperature: 13 - 16 deg
Comments :
Weather report
23:00 CL :
00:20 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
135251 (UT start 10:08)
136085 (UT start 07:29)
136085 (UT start 08:55)

2003-08-22
Night statistics
Night start : 23:43
Night end : 09:43
Night length: 10:00
Night conditions
Seeing : 0.5 - 1.2 arcsec
Wind : 6 - 11 m/s (NW-N)
Humidity : 5 - 20%
Temperature: 4 - 7 deg
Comments :
Weather report
23:00 TK TN : Thick cirrus low (E - NE - SE). Thin cirrus passing in the zenith
23:45 CL TN TK : Clear above us. Some thin cirrus close to 30 deg. in altitude. Still some thick cirrus on SE, but very low
01:00 TN TK : Thin cirrus going up coming from S
01:45 TK TN : More than half of the sky is overcast and getting worse. Telescope closed
05:40 CL TN TK : Clouds going away. Still some thin and thick cirrus below 30 deg in altitude. Telescopes opened.
07:00 CL :

(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
Odd even column effect results: LL; 0.991, UL 0.980, UR 1.009, LR 1.007. The mean count levels were 6000 ADU.
The DIT=5.0s and DIT=750s NDR SW darks initially were not reduced by the pipeline. They were resubmitted and were reduced OK.
The pipeline failed to reduce the SW_Arcs_MR_slit1 data, grating=1.7274. We resubmitted it but got the error 'failed to determine dispersion solution'. The arc only has 3 obvious lines on it. Setting was not reduced.
Technical time to measure inst focus values
Executed OBs
136085 (UT start 07:23)
136085 (UT start 08:49)

2003-08-27
Night statistics
Night start : 23:45
Night end : 09:39
Night length: 09:54
Night conditions
Seeing : 0.5-1.3"
Wind : ~5m/s N
Humidity : 3%
Temperature: ~10 C
Comments :
Weather report
23:00 CL :
00:00 PH : FORS2 Zp

(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
20 min lost see PPRS 10617, 10618
preparation lost due to wrong coordinates given by the astronomer for Mars and to the optimization of integration time and position angle
20 min technical time for change of 1 filter
Executed OBs
135251 (UT start 10:09)
136085 (UT start 06:24)

2003-09-14
Night statistics
Night start : 23:50
Night end : 09:23
Night length: 09:32
Night conditions
Seeing : 0.44-1.3"
Wind : 1-8m/s NW-N-NW
Humidity : 3-6%
Temperature: 8-10 deg. C
Comments :
Weather report
22:35 PH : According to ISAAC Zp

(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
Technical time 23:50-02:56 was to test new pipeline and sequencer code mods. There were no available OBs in the A Qs.
Technical loss 06:32-06:39 incorrect DPR.TYPE keywords in header
Executed OBs
135251 (UT start 09:22)
136085 (UT start 07:08)
136085 (UT start 07:42)
136085 (UT start 08:37)
136085 (UT start 09:35)

2003-09-26
Night statistics
Night start : 23:55
Night end : 09:09
Night length: 09:14
Night conditions
Seeing : 0.56-1.9"
Wind : 1-9m/s W-SW-SE
Humidity : 4-9%
Temperature: 11-14 deg. C
Comments :
Weather report
22:35 CL : thick low south and south west
02:40 TK : clouds coming from the south west, now at ~40 deg, the rest is clear
03:00 TK : clouds passing from south west to north east
04:00 TK : thick to north and east, clouds going away. The rest is thin.
04:20 TN : thick low north east
05:30 CL :

(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
135251 (UT start 05:05)
136085 (UT start 04:25)
136085 (UT start 08:09)

2003-09-27
Night statistics
Night start : 23:55
Night end : 09:08
Night length: 09:12
Night conditions
Seeing : 0.6-2.2"
Wind : 7-12 m/s S-SSE-S
Humidity : ~10 %
Temperature: 12-13 C
Comments :
Weather report
23:30 CL :
00:00 PH : FORS2 Zp

(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
Tests please ignore.
ISAAC_LWS_LR_ARCS_0001-0006.fits
ISAAC_LWS_MR_ARCS_0013-0027.fits
ISAAC_LWS_SCI_0001-0014.fits
ISAAC_LWS_SCI_0015-0019_CUBE1.fits
Another night with highly variable seeing, with conditions improving during the second half.
Technical tests were done partly due to the completely empty queues at the beginning of the night.
Executed OBs
135251 (UT start 01:45)
136085 (UT start 01:36)
136085 (UT start 02:34)
136085 (UT start 05:18)

2003-09-28
Night statistics
Night start : 23:56
Night end : 09:07
Night length: 09:11
Night conditions
Seeing : 0.5-1.35"
Wind : 0-5m/s N
Humidity : 9%
Temperature: 14-15%
Comments :
Weather report
23:00 CL :
00:30 PH : FORS2 Zp

(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
Daytime calibrations checked ok.
FORS1 CCD monthly test performed.
Executed OBs
135251 (UT start 08:38)
136085 (UT start 08:04)