Exposure
ID
GRAVI.2023-07-22T04:24:59.955_1
Header ID
GRAVI.2023-07-22T04:24:59.955
Date updated
2023-07-22 04:40:23 UTC+0000
Release date
2024-07-22 04:40:22 UTC+0000
UTC Start
2023-07-22 04:24:59.955
UTC End
2023-07-22 04:30:59.955
MJD Start
60147.18402726
MJD End
60147.18819392667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0039495
Ambient temperature (°C)
14.55
Seeing (arcsec)
0.545
Observation
ID
56358
Category
science
Program ID
111.24JN.002
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
41757
Name
WR_81
RA
255.665074
DEC
-45.98765
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 88.5420 88.3270 143.7000 145.1000
A0-J2 117.3400 116.4670 123.3000 124.7000
A0-K0 106.3040 104.9480 100.4920 101.7730
G1-J2 46.2370 45.5590 81.3000 82.4000
G1-K0 73.6960 72.9740 45.0750 45.6540
J2-K0 45.5430 45.4940 8.1640 8.8910
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60147.18402726
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_81
HIERARCH ESO INS SOBJ NAME WR_81
RA 255.665074
DEC -45.98765
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 88.542
HIERARCH ESO ISS PBL12 END 88.327
HIERARCH ESO ISS PBLA12 START 143.7
HIERARCH ESO ISS PBLA12 END 145.1
HIERARCH ESO ISS PBL13 START 117.34
HIERARCH ESO ISS PBL13 END 116.467
HIERARCH ESO ISS PBLA13 START 123.3
HIERARCH ESO ISS PBLA13 END 124.7
HIERARCH ESO ISS PBL14 START 106.304
HIERARCH ESO ISS PBL14 END 104.948
HIERARCH ESO ISS PBLA14 START 100.492
HIERARCH ESO ISS PBLA14 END 101.773
HIERARCH ESO ISS PBL23 START 46.237
HIERARCH ESO ISS PBL23 END 45.559
HIERARCH ESO ISS PBLA23 START 81.3
HIERARCH ESO ISS PBLA23 END 82.4
HIERARCH ESO ISS PBL24 START 73.696
HIERARCH ESO ISS PBL24 END 72.974
HIERARCH ESO ISS PBLA24 START 45.075
HIERARCH ESO ISS PBLA24 END 45.654
HIERARCH ESO ISS PBL34 START 45.543
HIERARCH ESO ISS PBL34 END 45.494
HIERARCH ESO ISS PBLA34 START 8.164
HIERARCH ESO ISS PBLA34 END 8.891
HIERARCH ESO ISS AMBI TAU0 START 0.004063
HIERARCH ESO ISS AMBI TAU0 END 0.003836
HIERARCH ESO ISS AMBI TEMP 14.55
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.56