Exposure
ID
GRAVI.2023-08-01T01:35:26.475_1
Header ID
GRAVI.2023-08-01T01:35:26.475
Date updated
2023-08-01 01:50:22 UTC+0000
Release date
2024-08-01 01:50:22 UTC+0000
UTC Start
2023-08-01 01:35:26.475
UTC End
2023-08-01 01:39:44.475
MJD Start
60157.06627865
MJD End
60157.069264761114
Exposure time (s)
258.0
Validation level
1
Tau 0: Coherence time (s)
0.0026035
Ambient temperature (°C)
18.2
Seeing (arcsec)
1.0499999999999998
Observation
ID
56492
Category
science
Program ID
109.23HT.003
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
SANA/ FROST/ TOONEN/ BORDIER/ LE BOUQUIN/ MAHY/ SHENAR
Target
ID
41867
Name
NGC6618_B189SW
RA
275.126938
DEC
-16.17927
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.2310 55.3170 20.8000 21.3000
U1-U3 99.7290 99.9400 27.2000 27.8000
U1-U4 126.0720 126.5940 56.1000 56.5870
U2-U3 45.2770 45.4030 35.1000 35.7000
U2-U4 87.0770 87.4560 77.6160 77.9990
U3-U4 61.7930 61.9560 107.2850 107.5670
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.23HT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60157.06627865
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME NGC6618_B189SW
HIERARCH ESO INS SOBJ NAME NGC6618_B189SW
RA 275.126938
DEC -16.17927
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 284.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 86
HIERARCH ESO ISS PBL12 START 55.231
HIERARCH ESO ISS PBL12 END 55.317
HIERARCH ESO ISS PBLA12 START 20.8
HIERARCH ESO ISS PBLA12 END 21.3
HIERARCH ESO ISS PBL13 START 99.729
HIERARCH ESO ISS PBL13 END 99.94
HIERARCH ESO ISS PBLA13 START 27.2
HIERARCH ESO ISS PBLA13 END 27.8
HIERARCH ESO ISS PBL14 START 126.072
HIERARCH ESO ISS PBL14 END 126.594
HIERARCH ESO ISS PBLA14 START 56.1
HIERARCH ESO ISS PBLA14 END 56.587
HIERARCH ESO ISS PBL23 START 45.277
HIERARCH ESO ISS PBL23 END 45.403
HIERARCH ESO ISS PBLA23 START 35.1
HIERARCH ESO ISS PBLA23 END 35.7
HIERARCH ESO ISS PBL24 START 87.077
HIERARCH ESO ISS PBL24 END 87.456
HIERARCH ESO ISS PBLA24 START 77.616
HIERARCH ESO ISS PBLA24 END 77.999
HIERARCH ESO ISS PBL34 START 61.793
HIERARCH ESO ISS PBL34 END 61.956
HIERARCH ESO ISS PBLA34 START 107.285
HIERARCH ESO ISS PBLA34 END 107.567
HIERARCH ESO ISS AMBI TAU0 START 0.002322
HIERARCH ESO ISS AMBI TAU0 END 0.002885
HIERARCH ESO ISS AMBI TEMP 18.2
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 0.96