Exposure
ID
GRAVI.2025-06-21T04:28:34.257_1
Header ID
GRAVI.2025-06-21T04:28:34.257
Date updated
2025-06-21 04:40:44 UTC+0000
Release date
2025-06-21 04:28:34 UTC+0000
UTC Start
2025-06-21 04:28:34.257
UTC End
2025-06-21 04:31:46.257
MJD Start
60847.1865076
MJD End
60847.18872982223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005441
Ambient temperature (°C)
11.43
Seeing (arcsec)
0.625
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 67.6970 67.8100 265.5000 266.1000
K0-D0 95.8870 95.9280 245.6000 246.1000
K0-J3 54.3120 54.4160 327.8370 328.2390
G2-D0 39.6440 39.6100 210.0000 210.5000
G2-J3 64.1900 64.1390 36.9380 37.4550
D0-J3 103.6530 103.5670 34.2820 34.7900
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 60847.1865076
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 67.697
HIERARCH ESO ISS PBL12 END 67.81
HIERARCH ESO ISS PBLA12 START 265.5
HIERARCH ESO ISS PBLA12 END 266.1
HIERARCH ESO ISS PBL13 START 95.887
HIERARCH ESO ISS PBL13 END 95.928
HIERARCH ESO ISS PBLA13 START 245.6
HIERARCH ESO ISS PBLA13 END 246.1
HIERARCH ESO ISS PBL14 START 54.312
HIERARCH ESO ISS PBL14 END 54.416
HIERARCH ESO ISS PBLA14 START 327.837
HIERARCH ESO ISS PBLA14 END 328.239
HIERARCH ESO ISS PBL23 START 39.644
HIERARCH ESO ISS PBL23 END 39.61
HIERARCH ESO ISS PBLA23 START 210.0
HIERARCH ESO ISS PBLA23 END 210.5
HIERARCH ESO ISS PBL24 START 64.19
HIERARCH ESO ISS PBL24 END 64.139
HIERARCH ESO ISS PBLA24 START 36.938
HIERARCH ESO ISS PBLA24 END 37.455
HIERARCH ESO ISS PBL34 START 103.653
HIERARCH ESO ISS PBL34 END 103.567
HIERARCH ESO ISS PBLA34 START 34.282
HIERARCH ESO ISS PBLA34 END 34.79
HIERARCH ESO ISS AMBI TAU0 START 0.005629
HIERARCH ESO ISS AMBI TAU0 END 0.005253
HIERARCH ESO ISS AMBI TEMP 11.43
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.61