Exposure
ID
GRAVI.2025-06-20T05:27:51.460_1
Header ID
GRAVI.2025-06-20T05:27:51.460
Date updated
2025-06-20 05:41:20 UTC+0000
Release date
2025-06-20 05:27:51 UTC+0000
UTC Start
2025-06-20 05:27:51.460
UTC End
2025-06-20 05:30:31.460
MJD Start
60846.22767893
MJD End
60846.22953078186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005478
Ambient temperature (°C)
12.76
Seeing (arcsec)
0.52
Observation
ID
68170
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
50675
Name
HD_174328
RA
282.629848
DEC
-13.5723
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.2900 68.3200 270.9000 271.1000
K0-D0 95.4340 95.5480 250.6000 250.8000
K0-J3 55.9270 55.8760 331.4500 331.7210
G2-D0 39.2990 39.3490 213.6000 213.9000
G2-J3 63.5150 63.6050 40.8600 41.1270
D0-J3 102.6190 102.7610 38.0920 38.3650
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 60846.22767893
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 174328
HIERARCH ESO INS SOBJ NAME HD_174328
RA 282.629848
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 68.29
HIERARCH ESO ISS PBL12 END 68.32
HIERARCH ESO ISS PBLA12 START 270.9
HIERARCH ESO ISS PBLA12 END 271.1
HIERARCH ESO ISS PBL13 START 95.434
HIERARCH ESO ISS PBL13 END 95.548
HIERARCH ESO ISS PBLA13 START 250.6
HIERARCH ESO ISS PBLA13 END 250.8
HIERARCH ESO ISS PBL14 START 55.927
HIERARCH ESO ISS PBL14 END 55.876
HIERARCH ESO ISS PBLA14 START 331.45
HIERARCH ESO ISS PBLA14 END 331.721
HIERARCH ESO ISS PBL23 START 39.299
HIERARCH ESO ISS PBL23 END 39.349
HIERARCH ESO ISS PBLA23 START 213.6
HIERARCH ESO ISS PBLA23 END 213.9
HIERARCH ESO ISS PBL24 START 63.515
HIERARCH ESO ISS PBL24 END 63.605
HIERARCH ESO ISS PBLA24 START 40.86
HIERARCH ESO ISS PBLA24 END 41.127
HIERARCH ESO ISS PBL34 START 102.619
HIERARCH ESO ISS PBL34 END 102.761
HIERARCH ESO ISS PBLA34 START 38.092
HIERARCH ESO ISS PBLA34 END 38.365
HIERARCH ESO ISS AMBI TAU0 START 0.00482
HIERARCH ESO ISS AMBI TAU0 END 0.006136
HIERARCH ESO ISS AMBI TEMP 12.76
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.49