Exposure
ID
GRAVI.2023-12-17T05:05:36.673_1
Header ID
GRAVI.2023-12-17T05:05:36.673
Date updated
2023-12-17 05:20:36 UTC+0000
Release date
2024-12-17 05:20:36 UTC+0000
UTC Start
2023-12-17 05:05:36.673
UTC End
2023-12-17 05:11:36.673
MJD Start
60295.21223001
MJD End
60295.2163966767
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0031005
Ambient temperature (°C)
12.88
Seeing (arcsec)
0.515
Observation
ID
57977
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
42928
Name
WR_9
RA
116.457295
DEC
-34.33012
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 82.8250 83.6100 103.1000 103.8000
A0-J2 120.5890 121.5920 78.1000 79.1000
A0-K0 123.3910 124.0120 55.9420 57.0270
G1-J2 57.3660 57.5090 40.6000 41.7000
G1-K0 90.4490 90.4330 13.7850 14.6410
J2-K0 47.0130 47.1060 340.3900 340.9630
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 60295.21223001
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_9
HIERARCH ESO INS SOBJ NAME WR_9
RA 116.457295
DEC -34.33012
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 82.825
HIERARCH ESO ISS PBL12 END 83.61
HIERARCH ESO ISS PBLA12 START 103.1
HIERARCH ESO ISS PBLA12 END 103.8
HIERARCH ESO ISS PBL13 START 120.589
HIERARCH ESO ISS PBL13 END 121.592
HIERARCH ESO ISS PBLA13 START 78.1
HIERARCH ESO ISS PBLA13 END 79.1
HIERARCH ESO ISS PBL14 START 123.391
HIERARCH ESO ISS PBL14 END 124.012
HIERARCH ESO ISS PBLA14 START 55.942
HIERARCH ESO ISS PBLA14 END 57.027
HIERARCH ESO ISS PBL23 START 57.366
HIERARCH ESO ISS PBL23 END 57.509
HIERARCH ESO ISS PBLA23 START 40.6
HIERARCH ESO ISS PBLA23 END 41.7
HIERARCH ESO ISS PBL24 START 90.449
HIERARCH ESO ISS PBL24 END 90.433
HIERARCH ESO ISS PBLA24 START 13.785
HIERARCH ESO ISS PBLA24 END 14.641
HIERARCH ESO ISS PBL34 START 47.013
HIERARCH ESO ISS PBL34 END 47.106
HIERARCH ESO ISS PBLA34 START 340.39
HIERARCH ESO ISS PBLA34 END 340.963
HIERARCH ESO ISS AMBI TAU0 START 0.002831
HIERARCH ESO ISS AMBI TAU0 END 0.00337
HIERARCH ESO ISS AMBI TEMP 12.88
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.49