Exposure
ID
GRAVI.2025-06-11T03:12:24.158_1
Header ID
GRAVI.2025-06-11T03:12:24.158
Date updated
2025-06-11 03:25:46 UTC+0000
Release date
2026-06-11 03:25:46 UTC+0000
UTC Start
2025-06-11 03:12:24.158
UTC End
2025-06-11 03:19:04.158
MJD Start
60837.13361294
MJD End
60837.13824256963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.007686999999999999
Ambient temperature (°C)
13.31
Seeing (arcsec)
0.395
Observation
ID
68028
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
50571
Name
Cl_NGC_6618_CEN_1a
RA
275.126159
DEC
-16.17856
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 53.6710 53.7380 6.9000 8.0000
U1-U3 95.1930 95.4420 12.7000 13.8000
U1-U4 109.1320 110.4980 41.7130 42.9770
U2-U3 42.1420 42.3440 20.1000 21.3000
U2-U4 71.8970 73.2940 66.9210 67.8620
U3-U4 52.9220 53.8390 102.4430 102.7050
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 60837.13361294
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 275.126159
DEC -16.17856
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 53.671
HIERARCH ESO ISS PBL12 END 53.738
HIERARCH ESO ISS PBLA12 START 6.9
HIERARCH ESO ISS PBLA12 END 8.0
HIERARCH ESO ISS PBL13 START 95.193
HIERARCH ESO ISS PBL13 END 95.442
HIERARCH ESO ISS PBLA13 START 12.7
HIERARCH ESO ISS PBLA13 END 13.8
HIERARCH ESO ISS PBL14 START 109.132
HIERARCH ESO ISS PBL14 END 110.498
HIERARCH ESO ISS PBLA14 START 41.713
HIERARCH ESO ISS PBLA14 END 42.977
HIERARCH ESO ISS PBL23 START 42.142
HIERARCH ESO ISS PBL23 END 42.344
HIERARCH ESO ISS PBLA23 START 20.1
HIERARCH ESO ISS PBLA23 END 21.3
HIERARCH ESO ISS PBL24 START 71.897
HIERARCH ESO ISS PBL24 END 73.294
HIERARCH ESO ISS PBLA24 START 66.921
HIERARCH ESO ISS PBLA24 END 67.862
HIERARCH ESO ISS PBL34 START 52.922
HIERARCH ESO ISS PBL34 END 53.839
HIERARCH ESO ISS PBLA34 START 102.443
HIERARCH ESO ISS PBLA34 END 102.705
HIERARCH ESO ISS AMBI TAU0 START 0.007534
HIERARCH ESO ISS AMBI TAU0 END 0.00784
HIERARCH ESO ISS AMBI TEMP 13.31
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.37