Exposure
ID
GRAVI.2025-10-14T01:21:30.871_1
Header ID
GRAVI.2025-10-14T01:21:30.871
Date updated
2025-10-14 01:36:03 UTC+0000
Release date
2026-10-14 01:36:03 UTC+0000
UTC Start
2025-10-14 01:21:30.871
UTC End
2025-10-14 01:26:18.871
MJD Start
60962.0566073
MJD End
60962.059940633335
Exposure time (s)
288.0
Validation level
1
Tau 0: Coherence time (s)
0.0046695
Ambient temperature (°C)
11.37
Seeing (arcsec)
0.705
Observation
ID
70938
Category
science
Program ID
115.29R0.001
Program Title
CONSTRAINING CALIBRATOR STAR DIAMETERS FOR RELIABLE INTERFEROMETRIC MEASUREMENTS
Program Type
ToO
PI / COI
GALLENNE / KERVELLA / BRAS
Target
ID
52643
Name
HD189322
RA
299.843394
DEC
1.37806
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 39.4460 39.2800 165.5000 166.4000
A0-J2 107.3270 105.5830 92.1000 92.1000
A0-J6 168.8570 169.0720 35.0560 35.1220
B5-J2 103.1940 102.1900 70.6000 70.4000
B5-J6 196.7380 197.2070 26.2740 26.5110
J2-J6 142.5730 142.4350 355.8660 356.6780
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.29R0.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60962.0566073
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD189322
HIERARCH ESO INS SOBJ NAME HD189322
RA 299.843394
DEC 1.37806
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 326.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 96
HIERARCH ESO ISS PBL12 START 39.446
HIERARCH ESO ISS PBL12 END 39.28
HIERARCH ESO ISS PBLA12 START 165.5
HIERARCH ESO ISS PBLA12 END 166.4
HIERARCH ESO ISS PBL13 START 107.327
HIERARCH ESO ISS PBL13 END 105.583
HIERARCH ESO ISS PBLA13 START 92.1
HIERARCH ESO ISS PBLA13 END 92.1
HIERARCH ESO ISS PBL14 START 168.857
HIERARCH ESO ISS PBL14 END 169.072
HIERARCH ESO ISS PBLA14 START 35.056
HIERARCH ESO ISS PBLA14 END 35.122
HIERARCH ESO ISS PBL23 START 103.194
HIERARCH ESO ISS PBL23 END 102.19
HIERARCH ESO ISS PBLA23 START 70.6
HIERARCH ESO ISS PBLA23 END 70.4
HIERARCH ESO ISS PBL24 START 196.738
HIERARCH ESO ISS PBL24 END 197.207
HIERARCH ESO ISS PBLA24 START 26.274
HIERARCH ESO ISS PBLA24 END 26.511
HIERARCH ESO ISS PBL34 START 142.573
HIERARCH ESO ISS PBL34 END 142.435
HIERARCH ESO ISS PBLA34 START 355.866
HIERARCH ESO ISS PBLA34 END 356.678
HIERARCH ESO ISS AMBI TAU0 START 0.004827
HIERARCH ESO ISS AMBI TAU0 END 0.004512
HIERARCH ESO ISS AMBI TEMP 11.37
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.72