Exposure
ID
GRAVI.2023-08-01T01:19:53.436_1
Header ID
GRAVI.2023-08-01T01:19:53.436
Date updated
2023-08-01 01:30:18 UTC+0000
Release date
2024-08-01 01:30:18 UTC+0000
UTC Start
2023-08-01 01:19:53.436
UTC End
2023-08-01 01:24:11.436
MJD Start
60157.05547958
MJD End
60157.05846569111
Exposure time (s)
258.0
Validation level
1
Tau 0: Coherence time (s)
0.0021605
Ambient temperature (°C)
18.12
Seeing (arcsec)
1.225
Observation
ID
56491
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
41866
Name
NGC6618_B189NE
RA
275.126906
DEC
-16.17933
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 54.9470 55.0340 18.9000 19.5000
U1-U3 99.0120 99.2340 25.3000 25.9000
U1-U4 124.1450 124.7660 54.4040 54.9370
U2-U3 44.8360 44.9750 33.2000 33.8000
U2-U4 85.6060 86.0900 76.3070 76.7140
U3-U4 61.1000 61.3370 106.3980 106.6620
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 60157.05547958
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME NGC6618_B189NE
HIERARCH ESO INS SOBJ NAME NGC6618_B189NE
RA 275.126906
DEC -16.17933
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 54.947
HIERARCH ESO ISS PBL12 END 55.034
HIERARCH ESO ISS PBLA12 START 18.9
HIERARCH ESO ISS PBLA12 END 19.5
HIERARCH ESO ISS PBL13 START 99.012
HIERARCH ESO ISS PBL13 END 99.234
HIERARCH ESO ISS PBLA13 START 25.3
HIERARCH ESO ISS PBLA13 END 25.9
HIERARCH ESO ISS PBL14 START 124.145
HIERARCH ESO ISS PBL14 END 124.766
HIERARCH ESO ISS PBLA14 START 54.404
HIERARCH ESO ISS PBLA14 END 54.937
HIERARCH ESO ISS PBL23 START 44.836
HIERARCH ESO ISS PBL23 END 44.975
HIERARCH ESO ISS PBLA23 START 33.2
HIERARCH ESO ISS PBLA23 END 33.8
HIERARCH ESO ISS PBL24 START 85.606
HIERARCH ESO ISS PBL24 END 86.09
HIERARCH ESO ISS PBLA24 START 76.307
HIERARCH ESO ISS PBLA24 END 76.714
HIERARCH ESO ISS PBL34 START 61.1
HIERARCH ESO ISS PBL34 END 61.337
HIERARCH ESO ISS PBLA34 START 106.398
HIERARCH ESO ISS PBLA34 END 106.662
HIERARCH ESO ISS AMBI TAU0 START 0.001915
HIERARCH ESO ISS AMBI TAU0 END 0.002406
HIERARCH ESO ISS AMBI TEMP 18.12
HIERARCH ESO ISS AMBI FWHM START 1.32
HIERARCH ESO ISS AMBI FWHM END 1.13