Exposure
ID
GRAVI.2023-08-19T03:31:33.575_1
Header ID
GRAVI.2023-08-19T03:31:33.575
Date updated
2023-08-19 03:45:35 UTC+0000
Release date
2024-08-19 03:45:35 UTC+0000
UTC Start
2023-08-19 03:31:33.575
UTC End
2023-08-19 03:37:33.575
MJD Start
60175.14691638
MJD End
60175.151083046665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.002532
Ambient temperature (°C)
11.38
Seeing (arcsec)
0.685
Observation
ID
56643
Category
science
Program ID
111.24JN.001
Program Title
ELUCIDATING THE EVOLUTIONARY CONNECTIONS BETWEEN NITROGEN- AND CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
SANA/ SHENAR/ BODENSTEINER/ BORDIER/ DSILVA/ FROST/ LANGER/ LE BOUQUIN/ MAHY/ MÉRAND/ PATRICK/ REGGIANI/ TRAMPER/ VILLASEÑOR
Target
ID
41967
Name
WR_89
RA
259.749328
DEC
-38.81425
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 83.9020 83.5580 151.4000 152.8000
A0-J2 105.7950 104.5680 129.4000 131.0000
A0-K0 94.1390 92.3160 103.0350 104.2940
G1-J2 42.0470 41.1850 81.1000 82.0000
G1-K0 73.5110 72.7090 44.5150 44.8650
J2-K0 47.0220 46.9640 12.2660 12.9310
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60175.14691638
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_89
HIERARCH ESO INS SOBJ NAME WR_89
RA 259.749328
DEC -38.81425
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 83.902
HIERARCH ESO ISS PBL12 END 83.558
HIERARCH ESO ISS PBLA12 START 151.4
HIERARCH ESO ISS PBLA12 END 152.8
HIERARCH ESO ISS PBL13 START 105.795
HIERARCH ESO ISS PBL13 END 104.568
HIERARCH ESO ISS PBLA13 START 129.4
HIERARCH ESO ISS PBLA13 END 131.0
HIERARCH ESO ISS PBL14 START 94.139
HIERARCH ESO ISS PBL14 END 92.316
HIERARCH ESO ISS PBLA14 START 103.035
HIERARCH ESO ISS PBLA14 END 104.294
HIERARCH ESO ISS PBL23 START 42.047
HIERARCH ESO ISS PBL23 END 41.185
HIERARCH ESO ISS PBLA23 START 81.1
HIERARCH ESO ISS PBLA23 END 82.0
HIERARCH ESO ISS PBL24 START 73.511
HIERARCH ESO ISS PBL24 END 72.709
HIERARCH ESO ISS PBLA24 START 44.515
HIERARCH ESO ISS PBLA24 END 44.865
HIERARCH ESO ISS PBL34 START 47.022
HIERARCH ESO ISS PBL34 END 46.964
HIERARCH ESO ISS PBLA34 START 12.266
HIERARCH ESO ISS PBLA34 END 12.931
HIERARCH ESO ISS AMBI TAU0 START 0.002173
HIERARCH ESO ISS AMBI TAU0 END 0.002891
HIERARCH ESO ISS AMBI TEMP 11.38
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.63