Exposure
ID
GRAVI.2023-08-21T03:32:00.898_1
Header ID
GRAVI.2023-08-21T03:32:00.898
Date updated
2023-08-21 03:50:26 UTC+0000
Release date
2023-08-21 03:32:00 UTC+0000
UTC Start
2023-08-21 03:32:00.898
UTC End
2023-08-21 03:38:00.898
MJD Start
60177.14723261
MJD End
60177.15139927666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0069375
Ambient temperature (°C)
13.32
Seeing (arcsec)
0.93
Observation
ID
56678
Category
calibrator
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
41995
Name
HD_166031
RA
272.419451
DEC
-20.83141
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 77.3190 76.4920 137.0000 138.2000
A0-J2 104.6530 102.7920 109.6000 110.5000
A0-K0 105.7540 103.8810 82.9110 83.3480
G1-J2 50.6200 49.9360 64.9000 65.1000
G1-K0 86.9530 86.5550 36.8700 37.0820
J2-K0 48.5050 48.5180 7.4980 8.1690
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60177.14723261
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_166031
HIERARCH ESO INS SOBJ NAME HD_166031
RA 272.419451
DEC -20.83141
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 77.319
HIERARCH ESO ISS PBL12 END 76.492
HIERARCH ESO ISS PBLA12 START 137.0
HIERARCH ESO ISS PBLA12 END 138.2
HIERARCH ESO ISS PBL13 START 104.653
HIERARCH ESO ISS PBL13 END 102.792
HIERARCH ESO ISS PBLA13 START 109.6
HIERARCH ESO ISS PBLA13 END 110.5
HIERARCH ESO ISS PBL14 START 105.754
HIERARCH ESO ISS PBL14 END 103.881
HIERARCH ESO ISS PBLA14 START 82.911
HIERARCH ESO ISS PBLA14 END 83.348
HIERARCH ESO ISS PBL23 START 50.62
HIERARCH ESO ISS PBL23 END 49.936
HIERARCH ESO ISS PBLA23 START 64.9
HIERARCH ESO ISS PBLA23 END 65.1
HIERARCH ESO ISS PBL24 START 86.953
HIERARCH ESO ISS PBL24 END 86.555
HIERARCH ESO ISS PBLA24 START 36.87
HIERARCH ESO ISS PBLA24 END 37.082
HIERARCH ESO ISS PBL34 START 48.505
HIERARCH ESO ISS PBL34 END 48.518
HIERARCH ESO ISS PBLA34 START 7.498
HIERARCH ESO ISS PBLA34 END 8.169
HIERARCH ESO ISS AMBI TAU0 START 0.00775
HIERARCH ESO ISS AMBI TAU0 END 0.006125
HIERARCH ESO ISS AMBI TEMP 13.32
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 1.06