Exposure
ID
GRAVI.2024-01-18T06:26:25.209_1
Header ID
GRAVI.2024-01-18T06:26:25.209
Date updated
2024-01-18 06:40:38 UTC+0000
Release date
2025-01-18 06:40:38 UTC+0000
UTC Start
2024-01-18 06:26:25.209
UTC End
2024-01-18 06:32:25.209
MJD Start
60327.26834733
MJD End
60327.2725139967
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0051405
Ambient temperature (°C)
17.59
Seeing (arcsec)
0.89
Observation
ID
58247
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
43126
Name
WR_31a
RA
163.493674
DEC
-60.44564
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 82.2790 82.7800 94.6000 95.9000
A0-J2 126.6170 126.9450 74.4000 75.8000
A0-K0 127.9100 127.8530 57.1230 58.4810
G1-J2 57.0160 56.9000 44.4000 45.7000
G1-K0 80.1590 79.9740 18.4860 19.4740
J2-K0 38.1820 38.3340 337.6710 338.4800
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 60327.26834733
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_31a
HIERARCH ESO INS SOBJ NAME WR_31a
RA 163.493674
DEC -60.44564
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 82.279
HIERARCH ESO ISS PBL12 END 82.78
HIERARCH ESO ISS PBLA12 START 94.6
HIERARCH ESO ISS PBLA12 END 95.9
HIERARCH ESO ISS PBL13 START 126.617
HIERARCH ESO ISS PBL13 END 126.945
HIERARCH ESO ISS PBLA13 START 74.4
HIERARCH ESO ISS PBLA13 END 75.8
HIERARCH ESO ISS PBL14 START 127.91
HIERARCH ESO ISS PBL14 END 127.853
HIERARCH ESO ISS PBLA14 START 57.123
HIERARCH ESO ISS PBLA14 END 58.481
HIERARCH ESO ISS PBL23 START 57.016
HIERARCH ESO ISS PBL23 END 56.9
HIERARCH ESO ISS PBLA23 START 44.4
HIERARCH ESO ISS PBLA23 END 45.7
HIERARCH ESO ISS PBL24 START 80.159
HIERARCH ESO ISS PBL24 END 79.974
HIERARCH ESO ISS PBLA24 START 18.486
HIERARCH ESO ISS PBLA24 END 19.474
HIERARCH ESO ISS PBL34 START 38.182
HIERARCH ESO ISS PBL34 END 38.334
HIERARCH ESO ISS PBLA34 START 337.671
HIERARCH ESO ISS PBLA34 END 338.48
HIERARCH ESO ISS AMBI TAU0 START 0.0047
HIERARCH ESO ISS AMBI TAU0 END 0.005581
HIERARCH ESO ISS AMBI TEMP 17.59
HIERARCH ESO ISS AMBI FWHM START 1.0
HIERARCH ESO ISS AMBI FWHM END 0.78