Exposure
ID
GRAVI.2023-08-24T00:21:11.141_1
Header ID
GRAVI.2023-08-24T00:21:11.141
Date updated
2023-08-24 00:35:26 UTC+0000
Release date
2024-08-24 00:35:26 UTC+0000
UTC Start
2023-08-24 00:21:11.141
UTC End
2023-08-24 00:27:11.141
MJD Start
60180.01471228
MJD End
60180.01887894666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.007373
Ambient temperature (°C)
15.32
Seeing (arcsec)
0.615
Observation
ID
56733
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
42036
Name
WR_75
RA
246.105699
DEC
-51.53504
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 90.5020 90.5080 128.8000 130.1000
A0-J2 126.8100 126.3930 108.7000 110.0000
A0-K0 119.5410 118.7440 88.4380 89.6620
G1-J2 52.1160 51.6860 72.1000 73.2000
G1-K0 77.4660 76.9520 39.2370 40.0070
J2-K0 43.9850 43.9870 359.2270 359.9950
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 60180.01471228
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_75
HIERARCH ESO INS SOBJ NAME WR_75
RA 246.105699
DEC -51.53504
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 90.502
HIERARCH ESO ISS PBL12 END 90.508
HIERARCH ESO ISS PBLA12 START 128.8
HIERARCH ESO ISS PBLA12 END 130.1
HIERARCH ESO ISS PBL13 START 126.81
HIERARCH ESO ISS PBL13 END 126.393
HIERARCH ESO ISS PBLA13 START 108.7
HIERARCH ESO ISS PBLA13 END 110.0
HIERARCH ESO ISS PBL14 START 119.541
HIERARCH ESO ISS PBL14 END 118.744
HIERARCH ESO ISS PBLA14 START 88.438
HIERARCH ESO ISS PBLA14 END 89.662
HIERARCH ESO ISS PBL23 START 52.116
HIERARCH ESO ISS PBL23 END 51.686
HIERARCH ESO ISS PBLA23 START 72.1
HIERARCH ESO ISS PBLA23 END 73.2
HIERARCH ESO ISS PBL24 START 77.466
HIERARCH ESO ISS PBL24 END 76.952
HIERARCH ESO ISS PBLA24 START 39.237
HIERARCH ESO ISS PBLA24 END 40.007
HIERARCH ESO ISS PBL34 START 43.985
HIERARCH ESO ISS PBL34 END 43.987
HIERARCH ESO ISS PBLA34 START 359.227
HIERARCH ESO ISS PBLA34 END 359.995
HIERARCH ESO ISS AMBI TAU0 START 0.007352
HIERARCH ESO ISS AMBI TAU0 END 0.007394
HIERARCH ESO ISS AMBI TEMP 15.32
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.63