Exposure
ID
GRAVI.2025-06-09T03:53:59.881_1
Header ID
GRAVI.2025-06-09T03:53:59.881
Date updated
2025-06-09 04:05:49 UTC+0000
Release date
2026-06-09 04:05:49 UTC+0000
UTC Start
2025-06-09 03:53:59.881
UTC End
2025-06-09 03:56:39.881
MJD Start
60835.16249862
MJD End
60835.16435047185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005954
Ambient temperature (°C)
13.51
Seeing (arcsec)
0.41000000000000003
Observation
ID
67840
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
50440
Name
WR_81
RA
255.671957
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 54.3360 54.2820 22.3000 22.7000
U1-U3 99.2920 99.1830 28.6000 29.0000
U1-U4 129.8440 129.7690 55.2110 55.7180
U2-U3 45.6690 45.6180 36.1000 36.5000
U2-U4 89.2310 89.2790 74.5150 75.0530
U3-U4 60.5370 60.6690 102.4900 102.9910
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 60835.16249862
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME MR 66
HIERARCH ESO INS SOBJ NAME WR_81
RA 255.671957
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 54.336
HIERARCH ESO ISS PBL12 END 54.282
HIERARCH ESO ISS PBLA12 START 22.3
HIERARCH ESO ISS PBLA12 END 22.7
HIERARCH ESO ISS PBL13 START 99.292
HIERARCH ESO ISS PBL13 END 99.183
HIERARCH ESO ISS PBLA13 START 28.6
HIERARCH ESO ISS PBLA13 END 29.0
HIERARCH ESO ISS PBL14 START 129.844
HIERARCH ESO ISS PBL14 END 129.769
HIERARCH ESO ISS PBLA14 START 55.211
HIERARCH ESO ISS PBLA14 END 55.718
HIERARCH ESO ISS PBL23 START 45.669
HIERARCH ESO ISS PBL23 END 45.618
HIERARCH ESO ISS PBLA23 START 36.1
HIERARCH ESO ISS PBLA23 END 36.5
HIERARCH ESO ISS PBL24 START 89.231
HIERARCH ESO ISS PBL24 END 89.279
HIERARCH ESO ISS PBLA24 START 74.515
HIERARCH ESO ISS PBLA24 END 75.053
HIERARCH ESO ISS PBL34 START 60.537
HIERARCH ESO ISS PBL34 END 60.669
HIERARCH ESO ISS PBLA34 START 102.49
HIERARCH ESO ISS PBLA34 END 102.991
HIERARCH ESO ISS AMBI TAU0 START 0.005954
HIERARCH ESO ISS AMBI TAU0 END 0.005954
HIERARCH ESO ISS AMBI TEMP 13.51
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.42