Exposure
ID
GRAVI.2025-06-09T03:50:47.872_1
Header ID
GRAVI.2025-06-09T03:50:47.872
Date updated
2025-06-09 04:01:01 UTC+0000
Release date
2026-06-09 04:01:01 UTC+0000
UTC Start
2025-06-09 03:50:47.872
UTC End
2025-06-09 03:53:27.872
MJD Start
60835.1602763
MJD End
60835.16212815185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0059074999999999996
Ambient temperature (°C)
13.7
Seeing (arcsec)
0.39
Observation
ID
67839
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
50439
Name
WR_81
RA
255.671954
DEC
-45.98681
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 54.3930 54.3410 21.9000 22.3000
U1-U3 99.4070 99.3020 28.1000 28.6000
U1-U4 129.9180 129.8510 54.6570 55.1650
U2-U3 45.7220 45.6730 35.6000 36.0000
U2-U4 89.1710 89.2260 73.9270 74.4660
U3-U4 60.3880 60.5250 101.9440 102.4450
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 60835.1602763
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME MR 66
HIERARCH ESO INS SOBJ NAME WR_81
RA 255.671954
DEC -45.98681
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 54.393
HIERARCH ESO ISS PBL12 END 54.341
HIERARCH ESO ISS PBLA12 START 21.9
HIERARCH ESO ISS PBLA12 END 22.3
HIERARCH ESO ISS PBL13 START 99.407
HIERARCH ESO ISS PBL13 END 99.302
HIERARCH ESO ISS PBLA13 START 28.1
HIERARCH ESO ISS PBLA13 END 28.6
HIERARCH ESO ISS PBL14 START 129.918
HIERARCH ESO ISS PBL14 END 129.851
HIERARCH ESO ISS PBLA14 START 54.657
HIERARCH ESO ISS PBLA14 END 55.165
HIERARCH ESO ISS PBL23 START 45.722
HIERARCH ESO ISS PBL23 END 45.673
HIERARCH ESO ISS PBLA23 START 35.6
HIERARCH ESO ISS PBLA23 END 36.0
HIERARCH ESO ISS PBL24 START 89.171
HIERARCH ESO ISS PBL24 END 89.226
HIERARCH ESO ISS PBLA24 START 73.927
HIERARCH ESO ISS PBLA24 END 74.466
HIERARCH ESO ISS PBL34 START 60.388
HIERARCH ESO ISS PBL34 END 60.525
HIERARCH ESO ISS PBLA34 START 101.944
HIERARCH ESO ISS PBLA34 END 102.445
HIERARCH ESO ISS AMBI TAU0 START 0.005861
HIERARCH ESO ISS AMBI TAU0 END 0.005954
HIERARCH ESO ISS AMBI TEMP 13.7
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.4