Exposure
ID
GRAVI.2023-08-01T02:44:59.652_1
Header ID
GRAVI.2023-08-01T02:44:59.652
Date updated
2023-08-01 03:00:14 UTC+0000
Release date
2024-08-01 03:00:14 UTC+0000
UTC Start
2023-08-01 02:44:59.652
UTC End
2023-08-01 02:49:59.652
MJD Start
60157.1145793
MJD End
60157.11805152222
Exposure time (s)
300.0
Validation level
1
Tau 0: Coherence time (s)
0.002245
Ambient temperature (°C)
18.69
Seeing (arcsec)
1.06
Observation
ID
56494
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
41869
Name
NGC_6618_B260
RA
275.110278
DEC
-16.14242
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 56.2990 56.3530 28.1000 28.6000
U1-U3 102.1040 102.2000 34.4000 34.8000
U1-U4 130.2100 130.1890 62.0940 62.4600
U2-U3 46.5580 46.5940 42.0000 42.4000
U2-U4 89.2780 89.1410 82.7470 83.1070
U3-U4 61.9590 61.7810 112.1100 112.5480
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 60157.1145793
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME NGC_6618_B260
HIERARCH ESO INS SOBJ NAME NGC_6618_B260
RA 275.110278
DEC -16.14242
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 316.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 10
HIERARCH ESO ISS PBL12 START 56.299
HIERARCH ESO ISS PBL12 END 56.353
HIERARCH ESO ISS PBLA12 START 28.1
HIERARCH ESO ISS PBLA12 END 28.6
HIERARCH ESO ISS PBL13 START 102.104
HIERARCH ESO ISS PBL13 END 102.2
HIERARCH ESO ISS PBLA13 START 34.4
HIERARCH ESO ISS PBLA13 END 34.8
HIERARCH ESO ISS PBL14 START 130.21
HIERARCH ESO ISS PBL14 END 130.189
HIERARCH ESO ISS PBLA14 START 62.094
HIERARCH ESO ISS PBLA14 END 62.46
HIERARCH ESO ISS PBL23 START 46.558
HIERARCH ESO ISS PBL23 END 46.594
HIERARCH ESO ISS PBLA23 START 42.0
HIERARCH ESO ISS PBLA23 END 42.4
HIERARCH ESO ISS PBL24 START 89.278
HIERARCH ESO ISS PBL24 END 89.141
HIERARCH ESO ISS PBLA24 START 82.747
HIERARCH ESO ISS PBLA24 END 83.107
HIERARCH ESO ISS PBL34 START 61.959
HIERARCH ESO ISS PBL34 END 61.781
HIERARCH ESO ISS PBLA34 START 112.11
HIERARCH ESO ISS PBLA34 END 112.548
HIERARCH ESO ISS AMBI TAU0 START 0.002117
HIERARCH ESO ISS AMBI TAU0 END 0.002373
HIERARCH ESO ISS AMBI TEMP 18.69
HIERARCH ESO ISS AMBI FWHM START 1.26
HIERARCH ESO ISS AMBI FWHM END 0.86