Exposure
ID
GRAVI.2025-06-20T05:18:51.436_1
Header ID
GRAVI.2025-06-20T05:18:51.436
Date updated
2025-06-20 05:30:47 UTC+0000
Release date
2025-06-20 05:18:51 UTC+0000
UTC Start
2025-06-20 05:18:51.436
UTC End
2025-06-20 05:22:03.436
MJD Start
60846.22142866
MJD End
60846.223650882224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0040175
Ambient temperature (°C)
12.77
Seeing (arcsec)
0.775
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 68.3340 68.3110 272.8000 273.3000
K0-D0 95.4560 95.3280 252.7000 253.3000
K0-J3 55.3780 55.4430 333.1330 333.5790
G2-D0 39.0470 38.9810 215.9000 216.3000
G2-J3 63.2070 63.0920 43.1500 43.6190
D0-J3 102.0600 101.8800 40.3830 40.8440
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 60846.22142866
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 68.334
HIERARCH ESO ISS PBL12 END 68.311
HIERARCH ESO ISS PBLA12 START 272.8
HIERARCH ESO ISS PBLA12 END 273.3
HIERARCH ESO ISS PBL13 START 95.456
HIERARCH ESO ISS PBL13 END 95.328
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 253.3
HIERARCH ESO ISS PBL14 START 55.378
HIERARCH ESO ISS PBL14 END 55.443
HIERARCH ESO ISS PBLA14 START 333.133
HIERARCH ESO ISS PBLA14 END 333.579
HIERARCH ESO ISS PBL23 START 39.047
HIERARCH ESO ISS PBL23 END 38.981
HIERARCH ESO ISS PBLA23 START 215.9
HIERARCH ESO ISS PBLA23 END 216.3
HIERARCH ESO ISS PBL24 START 63.207
HIERARCH ESO ISS PBL24 END 63.092
HIERARCH ESO ISS PBLA24 START 43.15
HIERARCH ESO ISS PBLA24 END 43.619
HIERARCH ESO ISS PBL34 START 102.06
HIERARCH ESO ISS PBL34 END 101.88
HIERARCH ESO ISS PBLA34 START 40.383
HIERARCH ESO ISS PBLA34 END 40.844
HIERARCH ESO ISS AMBI TAU0 START 0.00455
HIERARCH ESO ISS AMBI TAU0 END 0.003485
HIERARCH ESO ISS AMBI TEMP 12.77
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.75