Exposure
ID
GRAVI.2025-06-09T04:03:41.906_1
Header ID
GRAVI.2025-06-09T04:03:41.906
Date updated
2025-06-09 04:10:45 UTC+0000
Release date
2026-06-09 04:10:45 UTC+0000
UTC Start
2025-06-09 04:03:41.906
UTC End
2025-06-09 04:06:21.906
MJD Start
60835.16923502
MJD End
60835.17108687186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003795
Ambient temperature (°C)
13.47
Seeing (arcsec)
0.47
Observation
ID
67842
Category
science
Program ID
115.28E1.001
Program Title
A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
ID
50442
Name
WR_81
RA
255.671968
DEC
-45.9868
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 54.1520 54.0930 23.6000 24.0000
U1-U3 98.9190 98.8000 30.0000 30.4000
U1-U4 129.5670 129.4680 56.8790 57.3730
U2-U3 45.4940 45.4380 37.5000 38.0000
U2-U4 89.3640 89.3900 76.2870 76.8140
U3-U4 60.9540 61.0690 104.1460 104.6420
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60835.16923502
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME MR 66
HIERARCH ESO INS SOBJ NAME WR_81
RA 255.671968
DEC -45.9868
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 54.152
HIERARCH ESO ISS PBL12 END 54.093
HIERARCH ESO ISS PBLA12 START 23.6
HIERARCH ESO ISS PBLA12 END 24.0
HIERARCH ESO ISS PBL13 START 98.919
HIERARCH ESO ISS PBL13 END 98.8
HIERARCH ESO ISS PBLA13 START 30.0
HIERARCH ESO ISS PBLA13 END 30.4
HIERARCH ESO ISS PBL14 START 129.567
HIERARCH ESO ISS PBL14 END 129.468
HIERARCH ESO ISS PBLA14 START 56.879
HIERARCH ESO ISS PBLA14 END 57.373
HIERARCH ESO ISS PBL23 START 45.494
HIERARCH ESO ISS PBL23 END 45.438
HIERARCH ESO ISS PBLA23 START 37.5
HIERARCH ESO ISS PBLA23 END 38.0
HIERARCH ESO ISS PBL24 START 89.364
HIERARCH ESO ISS PBL24 END 89.39
HIERARCH ESO ISS PBLA24 START 76.287
HIERARCH ESO ISS PBLA24 END 76.814
HIERARCH ESO ISS PBL34 START 60.954
HIERARCH ESO ISS PBL34 END 61.069
HIERARCH ESO ISS PBLA34 START 104.146
HIERARCH ESO ISS PBLA34 END 104.642
HIERARCH ESO ISS AMBI TAU0 START 0.003795
HIERARCH ESO ISS AMBI TAU0 END 0.003795
HIERARCH ESO ISS AMBI TEMP 13.47
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.49