Exposure
ID
GRAVI.2023-08-19T03:45:00.609_1
Header ID
GRAVI.2023-08-19T03:45:00.609
Date updated
2023-08-19 04:00:31 UTC+0000
Release date
2024-08-19 04:00:31 UTC+0000
UTC Start
2023-08-19 03:45:00.609
UTC End
2023-08-19 03:51:00.609
MJD Start
60175.15625705
MJD End
60175.16042371667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0027140000000000003
Ambient temperature (°C)
11.31
Seeing (arcsec)
0.595
Observation
ID
56643
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
41967
Name
WR_89
RA
259.749328
DEC
-38.81425
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 83.1760 82.8520 154.5000 155.9000
A0-J2 103.1670 101.9460 132.8000 134.4000
A0-K0 90.1960 88.3080 105.7820 107.1300
G1-J2 40.1750 39.2670 82.9000 83.7000
G1-K0 71.7650 70.9140 45.2490 45.5660
J2-K0 46.8910 46.8230 13.6880 14.3450
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 60175.15625705
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_89
HIERARCH ESO INS SOBJ NAME WR_89
RA 259.749328
DEC -38.81425
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 83.176
HIERARCH ESO ISS PBL12 END 82.852
HIERARCH ESO ISS PBLA12 START 154.5
HIERARCH ESO ISS PBLA12 END 155.9
HIERARCH ESO ISS PBL13 START 103.167
HIERARCH ESO ISS PBL13 END 101.946
HIERARCH ESO ISS PBLA13 START 132.8
HIERARCH ESO ISS PBLA13 END 134.4
HIERARCH ESO ISS PBL14 START 90.196
HIERARCH ESO ISS PBL14 END 88.308
HIERARCH ESO ISS PBLA14 START 105.782
HIERARCH ESO ISS PBLA14 END 107.13
HIERARCH ESO ISS PBL23 START 40.175
HIERARCH ESO ISS PBL23 END 39.267
HIERARCH ESO ISS PBLA23 START 82.9
HIERARCH ESO ISS PBLA23 END 83.7
HIERARCH ESO ISS PBL24 START 71.765
HIERARCH ESO ISS PBL24 END 70.914
HIERARCH ESO ISS PBLA24 START 45.249
HIERARCH ESO ISS PBLA24 END 45.566
HIERARCH ESO ISS PBL34 START 46.891
HIERARCH ESO ISS PBL34 END 46.823
HIERARCH ESO ISS PBLA34 START 13.688
HIERARCH ESO ISS PBLA34 END 14.345
HIERARCH ESO ISS AMBI TAU0 START 0.003304
HIERARCH ESO ISS AMBI TAU0 END 0.002124
HIERARCH ESO ISS AMBI TEMP 11.31
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.65