Exposure
ID
GRAVI.2025-08-31T23:32:59.708_1
Header ID
GRAVI.2025-08-31T23:32:59.708
Date updated
2025-08-31 23:45:50 UTC+0000
Release date
2025-08-31 23:32:59 UTC+0000
UTC Start
2025-08-31 23:32:59.708
UTC End
2025-08-31 23:35:39.708
MJD Start
60918.98124662
MJD End
60918.98309847186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0020225
Ambient temperature (°C)
6.63
Seeing (arcsec)
1.62
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 88.2640 88.4930 111.5000 111.6000
A0-J2 122.4490 122.9600 88.1000 88.3000
A0-K0 119.1320 119.6590 65.0900 65.3810
G1-J2 54.1930 54.3910 47.9000 48.3000
G1-K0 86.4440 86.5460 17.4360 17.8220
J2-K0 48.3450 48.3240 342.7520 343.0050
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 60918.98124662
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 88.264
HIERARCH ESO ISS PBL12 END 88.493
HIERARCH ESO ISS PBLA12 START 111.5
HIERARCH ESO ISS PBLA12 END 111.6
HIERARCH ESO ISS PBL13 START 122.449
HIERARCH ESO ISS PBL13 END 122.96
HIERARCH ESO ISS PBLA13 START 88.1
HIERARCH ESO ISS PBLA13 END 88.3
HIERARCH ESO ISS PBL14 START 119.132
HIERARCH ESO ISS PBL14 END 119.659
HIERARCH ESO ISS PBLA14 START 65.09
HIERARCH ESO ISS PBLA14 END 65.381
HIERARCH ESO ISS PBL23 START 54.193
HIERARCH ESO ISS PBL23 END 54.391
HIERARCH ESO ISS PBLA23 START 47.9
HIERARCH ESO ISS PBLA23 END 48.3
HIERARCH ESO ISS PBL24 START 86.444
HIERARCH ESO ISS PBL24 END 86.546
HIERARCH ESO ISS PBLA24 START 17.436
HIERARCH ESO ISS PBLA24 END 17.822
HIERARCH ESO ISS PBL34 START 48.345
HIERARCH ESO ISS PBL34 END 48.324
HIERARCH ESO ISS PBLA34 START 342.752
HIERARCH ESO ISS PBLA34 END 343.005
HIERARCH ESO ISS AMBI TAU0 START 0.002135
HIERARCH ESO ISS AMBI TAU0 END 0.00191
HIERARCH ESO ISS AMBI TEMP 6.63
HIERARCH ESO ISS AMBI FWHM START 1.69
HIERARCH ESO ISS AMBI FWHM END 1.55