Exposure
ID
GRAVI.2025-06-21T05:54:16.474_1
Header ID
GRAVI.2025-06-21T05:54:16.474
Date updated
2025-06-21 06:05:52 UTC+0000
Release date
2025-06-21 05:54:16 UTC+0000
UTC Start
2025-06-21 05:54:16.474
UTC End
2025-06-21 05:57:28.474
MJD Start
60847.24602401
MJD End
60847.24824623222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004384
Ambient temperature (°C)
12.48
Seeing (arcsec)
0.47
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 67.5410 67.4060 279.0000 279.6000
K0-D0 93.3500 93.0680 258.6000 259.1000
K0-J3 55.9330 55.9710 338.0450 338.5220
G2-D0 38.1960 38.0970 220.5000 220.9000
G2-J3 61.6800 61.5000 47.9460 48.3730
D0-J3 99.6750 99.3960 45.0870 45.5050
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 60847.24602401
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 67.541
HIERARCH ESO ISS PBL12 END 67.406
HIERARCH ESO ISS PBLA12 START 279.0
HIERARCH ESO ISS PBLA12 END 279.6
HIERARCH ESO ISS PBL13 START 93.35
HIERARCH ESO ISS PBL13 END 93.068
HIERARCH ESO ISS PBLA13 START 258.6
HIERARCH ESO ISS PBLA13 END 259.1
HIERARCH ESO ISS PBL14 START 55.933
HIERARCH ESO ISS PBL14 END 55.971
HIERARCH ESO ISS PBLA14 START 338.045
HIERARCH ESO ISS PBLA14 END 338.522
HIERARCH ESO ISS PBL23 START 38.196
HIERARCH ESO ISS PBL23 END 38.097
HIERARCH ESO ISS PBLA23 START 220.5
HIERARCH ESO ISS PBLA23 END 220.9
HIERARCH ESO ISS PBL24 START 61.68
HIERARCH ESO ISS PBL24 END 61.5
HIERARCH ESO ISS PBLA24 START 47.946
HIERARCH ESO ISS PBLA24 END 48.373
HIERARCH ESO ISS PBL34 START 99.675
HIERARCH ESO ISS PBL34 END 99.396
HIERARCH ESO ISS PBLA34 START 45.087
HIERARCH ESO ISS PBLA34 END 45.505
HIERARCH ESO ISS AMBI TAU0 START 0.004168
HIERARCH ESO ISS AMBI TAU0 END 0.0046
HIERARCH ESO ISS AMBI TEMP 12.48
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.45