Exposure
ID
GRAVI.2025-09-19T23:49:08.172_1
Header ID
GRAVI.2025-09-19T23:49:08.172
Date updated
2025-09-20 00:00:42 UTC+0000
Release date
2025-09-19 23:49:08 UTC+0000
UTC Start
2025-09-19 23:49:08.172
UTC End
2025-09-19 23:51:48.172
MJD Start
60937.99245569
MJD End
60937.994307541856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003151
Ambient temperature (°C)
14.44
Seeing (arcsec)
0.8999999999999999
Observation
ID
70159
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
52058
Name
HD_174328
RA
282.627561
DEC
-13.5723
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 89.7370 89.5990 116.4000 116.7000
A0-J2 128.9980 128.8890 93.5000 93.7000
A0-K0 127.9690 127.9810 72.0880 72.2720
G1-J2 58.0950 58.1330 56.4000 56.6000
G1-K0 89.4630 89.5410 27.5700 27.8470
J2-K0 47.6910 47.6730 351.5640 351.8910
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 60937.99245569
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 174328
HIERARCH ESO INS SOBJ NAME HD_174328
RA 282.627561
DEC -13.5723
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 89.737
HIERARCH ESO ISS PBL12 END 89.599
HIERARCH ESO ISS PBLA12 START 116.4
HIERARCH ESO ISS PBLA12 END 116.7
HIERARCH ESO ISS PBL13 START 128.998
HIERARCH ESO ISS PBL13 END 128.889
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 127.969
HIERARCH ESO ISS PBL14 END 127.981
HIERARCH ESO ISS PBLA14 START 72.088
HIERARCH ESO ISS PBLA14 END 72.272
HIERARCH ESO ISS PBL23 START 58.095
HIERARCH ESO ISS PBL23 END 58.133
HIERARCH ESO ISS PBLA23 START 56.4
HIERARCH ESO ISS PBLA23 END 56.6
HIERARCH ESO ISS PBL24 START 89.463
HIERARCH ESO ISS PBL24 END 89.541
HIERARCH ESO ISS PBLA24 START 27.57
HIERARCH ESO ISS PBLA24 END 27.847
HIERARCH ESO ISS PBL34 START 47.691
HIERARCH ESO ISS PBL34 END 47.673
HIERARCH ESO ISS PBLA34 START 351.564
HIERARCH ESO ISS PBLA34 END 351.891
HIERARCH ESO ISS AMBI TAU0 START 0.003151
HIERARCH ESO ISS AMBI TAU0 END 0.003151
HIERARCH ESO ISS AMBI TEMP 14.44
HIERARCH ESO ISS AMBI FWHM START 0.97
HIERARCH ESO ISS AMBI FWHM END 0.83