Exposure
ID
GRAVI.2023-08-20T03:06:34.287_1
Header ID
GRAVI.2023-08-20T03:06:34.287
Date updated
2023-08-20 03:20:30 UTC+0000
Release date
2023-08-20 03:06:34 UTC+0000
UTC Start
2023-08-20 03:06:34.287
UTC End
2023-08-20 03:12:34.287
MJD Start
60176.12956351
MJD End
60176.13373017667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0032995
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.7949999999999999
Observation
ID
56659
Category
calibrator
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
41980
Name
HD_156641
RA
260.155908
DEC
-40.56736
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 85.9440 85.6190 146.7000 148.1000
A0-J2 111.3430 110.2150 125.0000 126.4000
A0-K0 100.8420 99.2050 100.1060 101.3090
G1-J2 44.7710 43.9960 79.7000 80.6000
G1-K0 75.1300 74.3900 43.9020 44.3430
J2-K0 46.8260 46.7770 9.8940 10.5860
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60176.12956351
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_156641
HIERARCH ESO INS SOBJ NAME HD_156641
RA 260.155908
DEC -40.56736
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 85.944
HIERARCH ESO ISS PBL12 END 85.619
HIERARCH ESO ISS PBLA12 START 146.7
HIERARCH ESO ISS PBLA12 END 148.1
HIERARCH ESO ISS PBL13 START 111.343
HIERARCH ESO ISS PBL13 END 110.215
HIERARCH ESO ISS PBLA13 START 125.0
HIERARCH ESO ISS PBLA13 END 126.4
HIERARCH ESO ISS PBL14 START 100.842
HIERARCH ESO ISS PBL14 END 99.205
HIERARCH ESO ISS PBLA14 START 100.106
HIERARCH ESO ISS PBLA14 END 101.309
HIERARCH ESO ISS PBL23 START 44.771
HIERARCH ESO ISS PBL23 END 43.996
HIERARCH ESO ISS PBLA23 START 79.7
HIERARCH ESO ISS PBLA23 END 80.6
HIERARCH ESO ISS PBL24 START 75.13
HIERARCH ESO ISS PBL24 END 74.39
HIERARCH ESO ISS PBLA24 START 43.902
HIERARCH ESO ISS PBLA24 END 44.343
HIERARCH ESO ISS PBL34 START 46.826
HIERARCH ESO ISS PBL34 END 46.777
HIERARCH ESO ISS PBLA34 START 9.894
HIERARCH ESO ISS PBLA34 END 10.586
HIERARCH ESO ISS AMBI TAU0 START 0.003302
HIERARCH ESO ISS AMBI TAU0 END 0.003297
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.76