Exposure
ID
GRAVI.2025-06-21T06:10:43.516_1
Header ID
GRAVI.2025-06-21T06:10:43.516
Date updated
2025-06-21 06:20:47 UTC+0000
Release date
2025-06-21 06:10:43 UTC+0000
UTC Start
2025-06-21 06:10:43.516
UTC End
2025-06-21 06:13:55.516
MJD Start
60847.2574481
MJD End
60847.25967032222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0042005
Ambient temperature (°C)
12.46
Seeing (arcsec)
0.52
Observation
ID
68169
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
50674
Name
HD_168592
RA
275.577086
DEC
-38.65706
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 66.8600 66.6800 281.7000 282.3000
K0-D0 91.9750 91.6270 261.0000 261.5000
K0-J3 56.0900 56.1210 340.1980 340.6870
G2-D0 37.7300 37.6160 222.2000 222.6000
G2-J3 60.8250 60.6150 49.8240 50.2340
D0-J3 98.3510 98.0270 46.9230 47.3240
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 60847.2574481
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.577086
DEC -38.65706
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 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 66.86
HIERARCH ESO ISS PBL12 END 66.68
HIERARCH ESO ISS PBLA12 START 281.7
HIERARCH ESO ISS PBLA12 END 282.3
HIERARCH ESO ISS PBL13 START 91.975
HIERARCH ESO ISS PBL13 END 91.627
HIERARCH ESO ISS PBLA13 START 261.0
HIERARCH ESO ISS PBLA13 END 261.5
HIERARCH ESO ISS PBL14 START 56.09
HIERARCH ESO ISS PBL14 END 56.121
HIERARCH ESO ISS PBLA14 START 340.198
HIERARCH ESO ISS PBLA14 END 340.687
HIERARCH ESO ISS PBL23 START 37.73
HIERARCH ESO ISS PBL23 END 37.616
HIERARCH ESO ISS PBLA23 START 222.2
HIERARCH ESO ISS PBLA23 END 222.6
HIERARCH ESO ISS PBL24 START 60.825
HIERARCH ESO ISS PBL24 END 60.615
HIERARCH ESO ISS PBLA24 START 49.824
HIERARCH ESO ISS PBLA24 END 50.234
HIERARCH ESO ISS PBL34 START 98.351
HIERARCH ESO ISS PBL34 END 98.027
HIERARCH ESO ISS PBLA34 START 46.923
HIERARCH ESO ISS PBLA34 END 47.324
HIERARCH ESO ISS AMBI TAU0 START 0.003726
HIERARCH ESO ISS AMBI TAU0 END 0.004675
HIERARCH ESO ISS AMBI TEMP 12.46
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.55