Exposure
ID
GRAVI.2025-06-09T04:00:26.897_1
Header ID
GRAVI.2025-06-09T04:00:26.897
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 04:00:26.897
UTC End
2025-06-09 04:03:06.897
MJD Start
60835.16697798
MJD End
60835.168829831855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0048745
Ambient temperature (°C)
13.45
Seeing (arcsec)
0.45
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 54.2150 54.1580 23.2000 23.6000
U1-U3 99.0470 98.9310 29.5000 29.9000
U1-U4 129.6690 129.5770 56.3250 56.8270
U2-U3 45.5550 45.5000 37.0000 37.5000
U2-U4 89.3280 89.3610 75.6980 76.2330
U3-U4 60.8210 60.9420 103.5940 104.0950
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 60835.16697798
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 54.215
HIERARCH ESO ISS PBL12 END 54.158
HIERARCH ESO ISS PBLA12 START 23.2
HIERARCH ESO ISS PBLA12 END 23.6
HIERARCH ESO ISS PBL13 START 99.047
HIERARCH ESO ISS PBL13 END 98.931
HIERARCH ESO ISS PBLA13 START 29.5
HIERARCH ESO ISS PBLA13 END 29.9
HIERARCH ESO ISS PBL14 START 129.669
HIERARCH ESO ISS PBL14 END 129.577
HIERARCH ESO ISS PBLA14 START 56.325
HIERARCH ESO ISS PBLA14 END 56.827
HIERARCH ESO ISS PBL23 START 45.555
HIERARCH ESO ISS PBL23 END 45.5
HIERARCH ESO ISS PBLA23 START 37.0
HIERARCH ESO ISS PBLA23 END 37.5
HIERARCH ESO ISS PBL24 START 89.328
HIERARCH ESO ISS PBL24 END 89.361
HIERARCH ESO ISS PBLA24 START 75.698
HIERARCH ESO ISS PBLA24 END 76.233
HIERARCH ESO ISS PBL34 START 60.821
HIERARCH ESO ISS PBL34 END 60.942
HIERARCH ESO ISS PBLA34 START 103.594
HIERARCH ESO ISS PBLA34 END 104.095
HIERARCH ESO ISS AMBI TAU0 START 0.005954
HIERARCH ESO ISS AMBI TAU0 END 0.003795
HIERARCH ESO ISS AMBI TEMP 13.45
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.46