Exposure
ID
GRAVI.2025-06-09T03:57:14.889_1
Header ID
GRAVI.2025-06-09T03:57:14.889
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 03:57:14.889
UTC End
2025-06-09 03:59:54.889
MJD Start
60835.16475566
MJD End
60835.166607511856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005954
Ambient temperature (°C)
13.46
Seeing (arcsec)
0.43
Observation
ID
67841
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
50441
Name
WR_81
RA
255.671962
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 54.2760 54.2210 22.8000 23.2000
U1-U3 99.1720 99.0590 29.1000 29.5000
U1-U4 129.7610 129.6780 55.7690 56.2730
U2-U3 45.6130 45.5600 36.6000 37.0000
U2-U4 89.2830 89.3240 75.1080 75.6430
U3-U4 60.6820 60.8090 103.0420 103.5430
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 60835.16475566
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME MR 66
HIERARCH ESO INS SOBJ NAME WR_81
RA 255.671962
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 54.276
HIERARCH ESO ISS PBL12 END 54.221
HIERARCH ESO ISS PBLA12 START 22.8
HIERARCH ESO ISS PBLA12 END 23.2
HIERARCH ESO ISS PBL13 START 99.172
HIERARCH ESO ISS PBL13 END 99.059
HIERARCH ESO ISS PBLA13 START 29.1
HIERARCH ESO ISS PBLA13 END 29.5
HIERARCH ESO ISS PBL14 START 129.761
HIERARCH ESO ISS PBL14 END 129.678
HIERARCH ESO ISS PBLA14 START 55.769
HIERARCH ESO ISS PBLA14 END 56.273
HIERARCH ESO ISS PBL23 START 45.613
HIERARCH ESO ISS PBL23 END 45.56
HIERARCH ESO ISS PBLA23 START 36.6
HIERARCH ESO ISS PBLA23 END 37.0
HIERARCH ESO ISS PBL24 START 89.283
HIERARCH ESO ISS PBL24 END 89.324
HIERARCH ESO ISS PBLA24 START 75.108
HIERARCH ESO ISS PBLA24 END 75.643
HIERARCH ESO ISS PBL34 START 60.682
HIERARCH ESO ISS PBL34 END 60.809
HIERARCH ESO ISS PBLA34 START 103.042
HIERARCH ESO ISS PBLA34 END 103.543
HIERARCH ESO ISS AMBI TAU0 START 0.005954
HIERARCH ESO ISS AMBI TAU0 END 0.005954
HIERARCH ESO ISS AMBI TEMP 13.46
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.44