Exposure
ID
GRAVI.2024-01-17T05:27:43.443_1
Header ID
GRAVI.2024-01-17T05:27:43.443
Date updated
2024-01-17 05:45:51 UTC+0000
Release date
2025-01-17 05:45:51 UTC+0000
UTC Start
2024-01-17 05:27:43.443
UTC End
2024-01-17 05:34:23.443
MJD Start
60326.22758615
MJD End
60326.2322157796
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.015022
Ambient temperature (°C)
18.12
Seeing (arcsec)
0.57
Observation
ID
58225
Category
science
Program ID
111.24JN.003
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
43111
Name
WR_21
RA
156.630814
DEC
-58.64059
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 67.2280 67.1160 33.6000 34.9000
A0-J2 124.0140 124.5300 66.8000 68.4000
A0-J3 128.9680 128.7230 30.0100 31.3120
G2-J2 77.1610 77.9120 95.4000 96.8000
G2-J3 62.0130 61.8850 26.1390 27.3910
J2-J3 80.0270 80.6620 321.7920 322.6920
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60326.22758615
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME WR_21
HIERARCH ESO INS SOBJ NAME WR_21
RA 156.630814
DEC -58.64059
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 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 67.228
HIERARCH ESO ISS PBL12 END 67.116
HIERARCH ESO ISS PBLA12 START 33.6
HIERARCH ESO ISS PBLA12 END 34.9
HIERARCH ESO ISS PBL13 START 124.014
HIERARCH ESO ISS PBL13 END 124.53
HIERARCH ESO ISS PBLA13 START 66.8
HIERARCH ESO ISS PBLA13 END 68.4
HIERARCH ESO ISS PBL14 START 128.968
HIERARCH ESO ISS PBL14 END 128.723
HIERARCH ESO ISS PBLA14 START 30.01
HIERARCH ESO ISS PBLA14 END 31.312
HIERARCH ESO ISS PBL23 START 77.161
HIERARCH ESO ISS PBL23 END 77.912
HIERARCH ESO ISS PBLA23 START 95.4
HIERARCH ESO ISS PBLA23 END 96.8
HIERARCH ESO ISS PBL24 START 62.013
HIERARCH ESO ISS PBL24 END 61.885
HIERARCH ESO ISS PBLA24 START 26.139
HIERARCH ESO ISS PBLA24 END 27.391
HIERARCH ESO ISS PBL34 START 80.027
HIERARCH ESO ISS PBL34 END 80.662
HIERARCH ESO ISS PBLA34 START 321.792
HIERARCH ESO ISS PBLA34 END 322.692
HIERARCH ESO ISS AMBI TAU0 START 0.015452
HIERARCH ESO ISS AMBI TAU0 END 0.014592
HIERARCH ESO ISS AMBI TEMP 18.12
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.59