Exposure
ID
GRAVI.2025-08-03T04:50:41.712_1
Header ID
GRAVI.2025-08-03T04:50:41.712
Date updated
2025-08-03 05:00:42 UTC+0000
Release date
2025-08-03 04:50:41 UTC+0000
UTC Start
2025-08-03 04:50:41.712
UTC End
2025-08-03 04:53:21.712
MJD Start
60890.20187167
MJD End
60890.20372352185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006649
Ambient temperature (°C)
10.77
Seeing (arcsec)
0.445
Observation
ID
67033
Category
calibrator
Program ID
115.27VK.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: THE VARIABILITY ACROSS THE MOLECULAR LAYERS AND THE PHOTOSPHERE
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / GONZÁLEZ-TORÀ / KRTICKA / PALADINI / HÖFNER / FREYTAG
Target
ID
49841
Name
HD_168000
RA
274.598179
DEC
-17.53439
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 75.1160 74.6820 135.7000 136.3000
A0-J2 102.8780 101.9530 107.4000 107.8000
A0-K0 105.9850 105.1060 80.7630 80.9090
G1-J2 51.2040 50.8960 63.3000 63.3000
G1-K0 87.9540 87.7960 36.3880 36.4710
J2-K0 48.2160 48.2270 7.6750 7.9910
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60890.20187167
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.598179
DEC -17.53439
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
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 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 75.116
HIERARCH ESO ISS PBL12 END 74.682
HIERARCH ESO ISS PBLA12 START 135.7
HIERARCH ESO ISS PBLA12 END 136.3
HIERARCH ESO ISS PBL13 START 102.878
HIERARCH ESO ISS PBL13 END 101.953
HIERARCH ESO ISS PBLA13 START 107.4
HIERARCH ESO ISS PBLA13 END 107.8
HIERARCH ESO ISS PBL14 START 105.985
HIERARCH ESO ISS PBL14 END 105.106
HIERARCH ESO ISS PBLA14 START 80.763
HIERARCH ESO ISS PBLA14 END 80.909
HIERARCH ESO ISS PBL23 START 51.204
HIERARCH ESO ISS PBL23 END 50.896
HIERARCH ESO ISS PBLA23 START 63.3
HIERARCH ESO ISS PBLA23 END 63.3
HIERARCH ESO ISS PBL24 START 87.954
HIERARCH ESO ISS PBL24 END 87.796
HIERARCH ESO ISS PBLA24 START 36.388
HIERARCH ESO ISS PBLA24 END 36.471
HIERARCH ESO ISS PBL34 START 48.216
HIERARCH ESO ISS PBL34 END 48.227
HIERARCH ESO ISS PBLA34 START 7.675
HIERARCH ESO ISS PBLA34 END 7.991
HIERARCH ESO ISS AMBI TAU0 START 0.006993
HIERARCH ESO ISS AMBI TAU0 END 0.006305
HIERARCH ESO ISS AMBI TEMP 10.77
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.45