Exposure
ID
GRAVI.2023-08-22T23:58:17.103_1
Header ID
GRAVI.2023-08-22T23:58:17.103
Date updated
2023-08-23 00:10:38 UTC+0000
Release date
2024-08-23 00:10:38 UTC+0000
UTC Start
2023-08-22 23:58:17.103
UTC End
2023-08-23 00:04:17.103
MJD Start
60178.99880906
MJD End
60179.00297572667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0066715
Ambient temperature (°C)
14.5
Seeing (arcsec)
0.695
Observation
ID
56720
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
42023
Name
WR_98
RA
264.304592
DEC
-33.46557
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 89.7800 90.0010 113.4000 114.2000
A0-J2 128.8920 129.0750 90.3000 91.2000
A0-K0 127.9730 127.9750 68.7820 69.6540
G1-J2 58.1930 58.1450 53.1000 53.9000
G1-K0 89.9290 89.8290 24.2380 24.9700
J2-K0 47.9940 48.0290 348.4730 349.1330
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 60178.99880906
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_98
HIERARCH ESO INS SOBJ NAME WR_98
RA 264.304592
DEC -33.46557
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 89.78
HIERARCH ESO ISS PBL12 END 90.001
HIERARCH ESO ISS PBLA12 START 113.4
HIERARCH ESO ISS PBLA12 END 114.2
HIERARCH ESO ISS PBL13 START 128.892
HIERARCH ESO ISS PBL13 END 129.075
HIERARCH ESO ISS PBLA13 START 90.3
HIERARCH ESO ISS PBLA13 END 91.2
HIERARCH ESO ISS PBL14 START 127.973
HIERARCH ESO ISS PBL14 END 127.975
HIERARCH ESO ISS PBLA14 START 68.782
HIERARCH ESO ISS PBLA14 END 69.654
HIERARCH ESO ISS PBL23 START 58.193
HIERARCH ESO ISS PBL23 END 58.145
HIERARCH ESO ISS PBLA23 START 53.1
HIERARCH ESO ISS PBLA23 END 53.9
HIERARCH ESO ISS PBL24 START 89.929
HIERARCH ESO ISS PBL24 END 89.829
HIERARCH ESO ISS PBLA24 START 24.238
HIERARCH ESO ISS PBLA24 END 24.97
HIERARCH ESO ISS PBL34 START 47.994
HIERARCH ESO ISS PBL34 END 48.029
HIERARCH ESO ISS PBLA34 START 348.473
HIERARCH ESO ISS PBLA34 END 349.133
HIERARCH ESO ISS AMBI TAU0 START 0.006896
HIERARCH ESO ISS AMBI TAU0 END 0.006447
HIERARCH ESO ISS AMBI TEMP 14.5
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.7