Exposure
ID
GRAVI.2025-08-31T23:39:44.724_1
Header ID
GRAVI.2025-08-31T23:39:44.724
Date updated
2025-08-31 23:50:48 UTC+0000
Release date
2025-08-31 23:39:44 UTC+0000
UTC Start
2025-08-31 23:39:44.724
UTC End
2025-08-31 23:42:24.724
MJD Start
60918.98593431
MJD End
60918.98778616186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0017875
Ambient temperature (°C)
6.47
Seeing (arcsec)
1.6099999999999999
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 88.7660 88.9670 111.7000 111.9000
A0-J2 123.5820 124.0490 88.5000 88.7000
A0-K0 120.3090 120.8030 65.7440 66.0230
G1-J2 54.6370 54.8260 48.8000 49.1000
G1-K0 86.6760 86.7790 18.3070 18.6860
J2-K0 48.2980 48.2770 343.3300 343.5890
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 60918.98593431
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 88.766
HIERARCH ESO ISS PBL12 END 88.967
HIERARCH ESO ISS PBLA12 START 111.7
HIERARCH ESO ISS PBLA12 END 111.9
HIERARCH ESO ISS PBL13 START 123.582
HIERARCH ESO ISS PBL13 END 124.049
HIERARCH ESO ISS PBLA13 START 88.5
HIERARCH ESO ISS PBLA13 END 88.7
HIERARCH ESO ISS PBL14 START 120.309
HIERARCH ESO ISS PBL14 END 120.803
HIERARCH ESO ISS PBLA14 START 65.744
HIERARCH ESO ISS PBLA14 END 66.023
HIERARCH ESO ISS PBL23 START 54.637
HIERARCH ESO ISS PBL23 END 54.826
HIERARCH ESO ISS PBLA23 START 48.8
HIERARCH ESO ISS PBLA23 END 49.1
HIERARCH ESO ISS PBL24 START 86.676
HIERARCH ESO ISS PBL24 END 86.779
HIERARCH ESO ISS PBLA24 START 18.307
HIERARCH ESO ISS PBLA24 END 18.686
HIERARCH ESO ISS PBL34 START 48.298
HIERARCH ESO ISS PBL34 END 48.277
HIERARCH ESO ISS PBLA34 START 343.33
HIERARCH ESO ISS PBLA34 END 343.589
HIERARCH ESO ISS AMBI TAU0 START 0.001737
HIERARCH ESO ISS AMBI TAU0 END 0.001838
HIERARCH ESO ISS AMBI TEMP 6.47
HIERARCH ESO ISS AMBI FWHM START 1.67
HIERARCH ESO ISS AMBI FWHM END 1.55