Exposure
ID
GRAVI.2025-08-31T23:43:02.733_1
Header ID
GRAVI.2025-08-31T23:43:02.733
Date updated
2025-08-31 23:55:45 UTC+0000
Release date
2025-08-31 23:43:02 UTC+0000
UTC Start
2025-08-31 23:43:02.733
UTC End
2025-08-31 23:45:42.733
MJD Start
60918.98822608
MJD End
60918.990077931856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.001759
Ambient temperature (°C)
6.39
Seeing (arcsec)
1.76
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 88.9900 89.1770 111.9000 112.0000
A0-J2 124.1020 124.5470 88.7000 88.9000
A0-K0 120.8610 121.3380 66.0560 66.3300
G1-J2 54.8480 55.0320 49.1000 49.5000
G1-K0 86.7910 86.8950 18.7300 19.1040
J2-K0 48.2740 48.2520 343.6200 343.8820
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 60918.98822608
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 88.99
HIERARCH ESO ISS PBL12 END 89.177
HIERARCH ESO ISS PBLA12 START 111.9
HIERARCH ESO ISS PBLA12 END 112.0
HIERARCH ESO ISS PBL13 START 124.102
HIERARCH ESO ISS PBL13 END 124.547
HIERARCH ESO ISS PBLA13 START 88.7
HIERARCH ESO ISS PBLA13 END 88.9
HIERARCH ESO ISS PBL14 START 120.861
HIERARCH ESO ISS PBL14 END 121.338
HIERARCH ESO ISS PBLA14 START 66.056
HIERARCH ESO ISS PBLA14 END 66.33
HIERARCH ESO ISS PBL23 START 54.848
HIERARCH ESO ISS PBL23 END 55.032
HIERARCH ESO ISS PBLA23 START 49.1
HIERARCH ESO ISS PBLA23 END 49.5
HIERARCH ESO ISS PBL24 START 86.791
HIERARCH ESO ISS PBL24 END 86.895
HIERARCH ESO ISS PBLA24 START 18.73
HIERARCH ESO ISS PBLA24 END 19.104
HIERARCH ESO ISS PBL34 START 48.274
HIERARCH ESO ISS PBL34 END 48.252
HIERARCH ESO ISS PBLA34 START 343.62
HIERARCH ESO ISS PBLA34 END 343.882
HIERARCH ESO ISS AMBI TAU0 START 0.001878
HIERARCH ESO ISS AMBI TAU0 END 0.00164
HIERARCH ESO ISS AMBI TEMP 6.39
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76