Exposure
ID
GRAVI.2025-05-23T07:31:52.563_1
Header ID
GRAVI.2025-05-23T07:31:52.563
Date updated
2025-05-23 07:45:53 UTC+0000
Release date
2025-05-23 07:31:52 UTC+0000
UTC Start
2025-05-23 07:31:52.563
UTC End
2025-05-23 07:35:04.563
MJD Start
60818.31380281
MJD End
60818.316025032225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004847000000000001
Ambient temperature (°C)
13.75
Seeing (arcsec)
0.44
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 68.0190 67.9290 276.4000 277.0000
K0-D0 94.4310 94.2130 256.1000 256.7000
K0-J3 55.7350 55.7830 335.9510 336.4170
G2-D0 38.5940 38.5100 218.6000 219.0000
G2-J3 62.4030 62.2510 45.9960 46.4420
D0-J3 100.7990 100.5620 43.1760 43.6130
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 60818.31380281
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 68.019
HIERARCH ESO ISS PBL12 END 67.929
HIERARCH ESO ISS PBLA12 START 276.4
HIERARCH ESO ISS PBLA12 END 277.0
HIERARCH ESO ISS PBL13 START 94.431
HIERARCH ESO ISS PBL13 END 94.213
HIERARCH ESO ISS PBLA13 START 256.1
HIERARCH ESO ISS PBLA13 END 256.7
HIERARCH ESO ISS PBL14 START 55.735
HIERARCH ESO ISS PBL14 END 55.783
HIERARCH ESO ISS PBLA14 START 335.951
HIERARCH ESO ISS PBLA14 END 336.417
HIERARCH ESO ISS PBL23 START 38.594
HIERARCH ESO ISS PBL23 END 38.51
HIERARCH ESO ISS PBLA23 START 218.6
HIERARCH ESO ISS PBLA23 END 219.0
HIERARCH ESO ISS PBL24 START 62.403
HIERARCH ESO ISS PBL24 END 62.251
HIERARCH ESO ISS PBLA24 START 45.996
HIERARCH ESO ISS PBLA24 END 46.442
HIERARCH ESO ISS PBL34 START 100.799
HIERARCH ESO ISS PBL34 END 100.562
HIERARCH ESO ISS PBLA34 START 43.176
HIERARCH ESO ISS PBLA34 END 43.613
HIERARCH ESO ISS AMBI TAU0 START 0.00485
HIERARCH ESO ISS AMBI TAU0 END 0.004844
HIERARCH ESO ISS AMBI TEMP 13.75
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.43