Exposure
ID
GRAVI.2023-07-23T04:22:07.036_1
Header ID
GRAVI.2023-07-23T04:22:07.036
Date updated
2023-07-23 04:35:24 UTC+0000
Release date
2023-07-23 04:22:07 UTC+0000
UTC Start
2023-07-23 04:22:07.036
UTC End
2023-07-23 04:27:27.036
MJD Start
60148.18202588
MJD End
60148.1857295837
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.002428
Ambient temperature (°C)
16.12
Seeing (arcsec)
0.865
Observation
ID
56386
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
41783
Name
HD_166240
RA
272.642879
DEC
-18.70035
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 84.3900 83.7540 125.6000 126.4000
A0-J2 120.0720 118.9380 100.7000 101.3000
A0-K0 121.1120 120.1310 77.6330 77.9880
G1-J2 56.2410 55.9170 61.4000 61.7000
G1-K0 90.0690 89.9490 33.5010 33.8410
J2-K0 48.2220 48.2240 0.3730 1.0080
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 60148.18202588
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_166240
HIERARCH ESO INS SOBJ NAME HD_166240
RA 272.642879
DEC -18.70035
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 339.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 84.39
HIERARCH ESO ISS PBL12 END 83.754
HIERARCH ESO ISS PBLA12 START 125.6
HIERARCH ESO ISS PBLA12 END 126.4
HIERARCH ESO ISS PBL13 START 120.072
HIERARCH ESO ISS PBL13 END 118.938
HIERARCH ESO ISS PBLA13 START 100.7
HIERARCH ESO ISS PBLA13 END 101.3
HIERARCH ESO ISS PBL14 START 121.112
HIERARCH ESO ISS PBL14 END 120.131
HIERARCH ESO ISS PBLA14 START 77.633
HIERARCH ESO ISS PBLA14 END 77.988
HIERARCH ESO ISS PBL23 START 56.241
HIERARCH ESO ISS PBL23 END 55.917
HIERARCH ESO ISS PBLA23 START 61.4
HIERARCH ESO ISS PBLA23 END 61.7
HIERARCH ESO ISS PBL24 START 90.069
HIERARCH ESO ISS PBL24 END 89.949
HIERARCH ESO ISS PBLA24 START 33.501
HIERARCH ESO ISS PBLA24 END 33.841
HIERARCH ESO ISS PBL34 START 48.222
HIERARCH ESO ISS PBL34 END 48.224
HIERARCH ESO ISS PBLA34 START 0.373
HIERARCH ESO ISS PBLA34 END 1.008
HIERARCH ESO ISS AMBI TAU0 START 0.002311
HIERARCH ESO ISS AMBI TAU0 END 0.002545
HIERARCH ESO ISS AMBI TEMP 16.12
HIERARCH ESO ISS AMBI FWHM START 0.94
HIERARCH ESO ISS AMBI FWHM END 0.79