Exposure
ID
GRAVI.2025-05-23T07:23:40.542_1
Header ID
GRAVI.2025-05-23T07:23:40.542
Date updated
2025-05-23 07:36:23 UTC+0000
Release date
2025-05-23 07:23:40 UTC+0000
UTC Start
2025-05-23 07:23:40.542
UTC End
2025-05-23 07:26:52.542
MJD Start
60818.30810813
MJD End
60818.31033035222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005252
Ambient temperature (°C)
13.75
Seeing (arcsec)
0.445
Observation
ID
67544
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
50234
Name
HD_168592
RA
275.577088
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 68.1790 68.1130 275.1000 275.7000
K0-D0 94.8610 94.6750 254.9000 255.5000
K0-J3 55.6190 55.6730 334.9380 335.3970
G2-D0 38.7690 38.6920 217.7000 218.1000
G2-J3 62.7160 62.5780 45.0040 45.4580
D0-J3 101.2890 101.0730 42.2030 42.6480
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 60818.30810813
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.577088
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 68.179
HIERARCH ESO ISS PBL12 END 68.113
HIERARCH ESO ISS PBLA12 START 275.1
HIERARCH ESO ISS PBLA12 END 275.7
HIERARCH ESO ISS PBL13 START 94.861
HIERARCH ESO ISS PBL13 END 94.675
HIERARCH ESO ISS PBLA13 START 254.9
HIERARCH ESO ISS PBLA13 END 255.5
HIERARCH ESO ISS PBL14 START 55.619
HIERARCH ESO ISS PBL14 END 55.673
HIERARCH ESO ISS PBLA14 START 334.938
HIERARCH ESO ISS PBLA14 END 335.397
HIERARCH ESO ISS PBL23 START 38.769
HIERARCH ESO ISS PBL23 END 38.692
HIERARCH ESO ISS PBLA23 START 217.7
HIERARCH ESO ISS PBLA23 END 218.1
HIERARCH ESO ISS PBL24 START 62.716
HIERARCH ESO ISS PBL24 END 62.578
HIERARCH ESO ISS PBLA24 START 45.004
HIERARCH ESO ISS PBLA24 END 45.458
HIERARCH ESO ISS PBL34 START 101.289
HIERARCH ESO ISS PBL34 END 101.073
HIERARCH ESO ISS PBLA34 START 42.203
HIERARCH ESO ISS PBLA34 END 42.648
HIERARCH ESO ISS AMBI TAU0 START 0.005078
HIERARCH ESO ISS AMBI TAU0 END 0.005426
HIERARCH ESO ISS AMBI TEMP 13.75
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.5