Exposure
ID
GRAVI.2024-08-17T05:03:54.177_1
Header ID
GRAVI.2024-08-17T05:03:54.177
Date updated
2024-08-17 05:15:40 UTC+0000
Release date
2025-08-17 05:15:40 UTC+0000
UTC Start
2024-08-17 05:03:54.177
UTC End
2024-08-17 05:09:54.177
MJD Start
60539.21104372
MJD End
60539.21521038667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.002639
Ambient temperature (°C)
13.43
Seeing (arcsec)
0.97
Observation
ID
60333
Category
science
Program ID
113.26M5.001
Program Title
PROBING THE ORIGIN OF THE INNER DISK VARIABILITY OF HD 169142
Program Type
GTO
PI / COI
BERGER / BENISTY / BOURDAROT / WOILLEZ / LE BOUQUIN / ROUSSELET-PERRAUT / MATTER / MÉRAND
Target
ID
44789
Name
HD_169142
RA
276.12151
DEC
-29.78058
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 76.5940 76.1140 154.5000 156.1000
A0-J2 92.3880 90.7350 129.2000 130.8000
A0-K0 84.2200 81.9410 97.8730 98.8800
G1-J2 40.1760 39.2040 74.4000 74.8000
G1-K0 76.6110 75.8500 41.2330 41.3580
J2-K0 48.2780 48.2420 14.1430 14.7520
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26M5.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60539.21104372
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_169142
HIERARCH ESO INS SOBJ NAME HD_169142
RA 276.12151
DEC -29.78058
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 76.594
HIERARCH ESO ISS PBL12 END 76.114
HIERARCH ESO ISS PBLA12 START 154.5
HIERARCH ESO ISS PBLA12 END 156.1
HIERARCH ESO ISS PBL13 START 92.388
HIERARCH ESO ISS PBL13 END 90.735
HIERARCH ESO ISS PBLA13 START 129.2
HIERARCH ESO ISS PBLA13 END 130.8
HIERARCH ESO ISS PBL14 START 84.22
HIERARCH ESO ISS PBL14 END 81.941
HIERARCH ESO ISS PBLA14 START 97.873
HIERARCH ESO ISS PBLA14 END 98.88
HIERARCH ESO ISS PBL23 START 40.176
HIERARCH ESO ISS PBL23 END 39.204
HIERARCH ESO ISS PBLA23 START 74.4
HIERARCH ESO ISS PBLA23 END 74.8
HIERARCH ESO ISS PBL24 START 76.611
HIERARCH ESO ISS PBL24 END 75.85
HIERARCH ESO ISS PBLA24 START 41.233
HIERARCH ESO ISS PBLA24 END 41.358
HIERARCH ESO ISS PBL34 START 48.278
HIERARCH ESO ISS PBL34 END 48.242
HIERARCH ESO ISS PBLA34 START 14.143
HIERARCH ESO ISS PBLA34 END 14.752
HIERARCH ESO ISS AMBI TAU0 START 0.002639
HIERARCH ESO ISS AMBI TAU0 END 0.002639
HIERARCH ESO ISS AMBI TEMP 13.43
HIERARCH ESO ISS AMBI FWHM START 0.85
HIERARCH ESO ISS AMBI FWHM END 1.09