Exposure
ID
GRAVI.2025-06-09T06:34:00.288_1
Header ID
GRAVI.2025-06-09T06:34:00.288
Date updated
2025-06-09 06:50:42 UTC+0000
Release date
2026-06-09 06:50:41 UTC+0000
UTC Start
2025-06-09 06:34:00.288
UTC End
2025-06-09 06:40:40.288
MJD Start
60835.27361444
MJD End
60835.278244069625
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.006721
Ambient temperature (°C)
13.62
Seeing (arcsec)
0.335
Observation
ID
67852
Category
science
Program ID
115.287G.001
Program Title
MONITORING A TRIPLE SYSTEM WITH A MAIN SEQUENCE INNER BINARY AND A PRE-MAIN-SEQUENCE TERTIARY
Program Type
Normal
PI / COI
FROST / SANA / BORDIER
Target
ID
50452
Name
Cl_NGC_6618_CEN_1a
RA
275.12617
DEC
-16.17884
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.4910 56.5250 30.0000 30.6000
U1-U3 102.4030 102.4310 36.2000 36.7000
U1-U4 129.7620 129.4390 63.5810 63.9910
U2-U3 46.6400 46.6260 43.7000 44.2000
U2-U4 88.3910 87.9650 84.2730 84.7250
U3-U4 61.0300 60.6590 114.0710 114.7100
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.287G.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60835.27361444
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME NGC 6618 341B
HIERARCH ESO INS SOBJ NAME Cl_NGC_6618_CEN_1a
RA 275.12617
DEC -16.17884
HIERARCH ESO INS SPEC RES HIGH
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 56.491
HIERARCH ESO ISS PBL12 END 56.525
HIERARCH ESO ISS PBLA12 START 30.0
HIERARCH ESO ISS PBLA12 END 30.6
HIERARCH ESO ISS PBL13 START 102.403
HIERARCH ESO ISS PBL13 END 102.431
HIERARCH ESO ISS PBLA13 START 36.2
HIERARCH ESO ISS PBLA13 END 36.7
HIERARCH ESO ISS PBL14 START 129.762
HIERARCH ESO ISS PBL14 END 129.439
HIERARCH ESO ISS PBLA14 START 63.581
HIERARCH ESO ISS PBLA14 END 63.991
HIERARCH ESO ISS PBL23 START 46.64
HIERARCH ESO ISS PBL23 END 46.626
HIERARCH ESO ISS PBLA23 START 43.7
HIERARCH ESO ISS PBLA23 END 44.2
HIERARCH ESO ISS PBL24 START 88.391
HIERARCH ESO ISS PBL24 END 87.965
HIERARCH ESO ISS PBLA24 START 84.273
HIERARCH ESO ISS PBLA24 END 84.725
HIERARCH ESO ISS PBL34 START 61.03
HIERARCH ESO ISS PBL34 END 60.659
HIERARCH ESO ISS PBLA34 START 114.071
HIERARCH ESO ISS PBLA34 END 114.71
HIERARCH ESO ISS AMBI TAU0 START 0.007126
HIERARCH ESO ISS AMBI TAU0 END 0.006316
HIERARCH ESO ISS AMBI TEMP 13.62
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.33