Exposure
ID
GRAVI.2023-08-01T01:08:05.406_1
Header ID
GRAVI.2023-08-01T01:08:05.406
Date updated
2023-08-01 01:20:30 UTC+0000
Release date
2024-08-01 01:20:29 UTC+0000
UTC Start
2023-08-01 01:08:05.406
UTC End
2023-08-01 01:12:23.406
MJD Start
60157.04728479
MJD End
60157.05027090111
Exposure time (s)
258.0
Validation level
1
Tau 0: Coherence time (s)
0.002298
Ambient temperature (°C)
18.38
Seeing (arcsec)
1.25
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 54.7340 54.8190 17.4000 18.0000
U1-U3 98.4500 98.6770 23.8000 24.4000
U1-U4 122.4770 123.1660 53.0120 53.5820
U2-U3 44.4790 44.6240 31.7000 32.3000
U2-U4 84.2640 84.8250 75.2540 75.6830
U3-U4 60.4100 60.7040 105.7630 106.0140
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 60157.04728479
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 54.734
HIERARCH ESO ISS PBL12 END 54.819
HIERARCH ESO ISS PBLA12 START 17.4
HIERARCH ESO ISS PBLA12 END 18.0
HIERARCH ESO ISS PBL13 START 98.45
HIERARCH ESO ISS PBL13 END 98.677
HIERARCH ESO ISS PBLA13 START 23.8
HIERARCH ESO ISS PBLA13 END 24.4
HIERARCH ESO ISS PBL14 START 122.477
HIERARCH ESO ISS PBL14 END 123.166
HIERARCH ESO ISS PBLA14 START 53.012
HIERARCH ESO ISS PBLA14 END 53.582
HIERARCH ESO ISS PBL23 START 44.479
HIERARCH ESO ISS PBL23 END 44.624
HIERARCH ESO ISS PBLA23 START 31.7
HIERARCH ESO ISS PBLA23 END 32.3
HIERARCH ESO ISS PBL24 START 84.264
HIERARCH ESO ISS PBL24 END 84.825
HIERARCH ESO ISS PBLA24 START 75.254
HIERARCH ESO ISS PBLA24 END 75.683
HIERARCH ESO ISS PBL34 START 60.41
HIERARCH ESO ISS PBL34 END 60.704
HIERARCH ESO ISS PBLA34 START 105.763
HIERARCH ESO ISS PBLA34 END 106.014
HIERARCH ESO ISS AMBI TAU0 START 0.002298
HIERARCH ESO ISS AMBI TAU0 END 0.002298
HIERARCH ESO ISS AMBI TEMP 18.38
HIERARCH ESO ISS AMBI FWHM START 1.25
HIERARCH ESO ISS AMBI FWHM END 1.25