Exposure
ID
GRAVI.2025-05-27T03:59:14.702_1
Header ID
GRAVI.2025-05-27T03:59:14.702
Date updated
2025-05-27 04:11:01 UTC+0000
Release date
2026-05-27 04:11:00 UTC+0000
UTC Start
2025-05-27 03:59:14.702
UTC End
2025-05-27 04:01:54.702
MJD Start
60822.16614238
MJD End
60822.16799423186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002496
Ambient temperature (°C)
12.43
Seeing (arcsec)
0.6950000000000001
Observation
ID
67604
Category
science
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
50276
Name
HD_319775
RA
260.496087
DEC
-37.52106
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 81.6420 82.0300 100.9000 101.3000
A0-J2 120.2400 120.7050 76.0000 76.5000
A0-K0 123.8840 124.1470 54.2300 54.7670
G1-J2 57.6340 57.6870 39.3000 39.8000
G1-K0 90.2170 90.2000 13.0410 13.4470
J2-K0 46.1980 46.2520 339.5520 339.8220
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60822.16614238
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 319775
HIERARCH ESO INS SOBJ NAME HD_319775
RA 260.496087
DEC -37.52106
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 81.642
HIERARCH ESO ISS PBL12 END 82.03
HIERARCH ESO ISS PBLA12 START 100.9
HIERARCH ESO ISS PBLA12 END 101.3
HIERARCH ESO ISS PBL13 START 120.24
HIERARCH ESO ISS PBL13 END 120.705
HIERARCH ESO ISS PBLA13 START 76.0
HIERARCH ESO ISS PBLA13 END 76.5
HIERARCH ESO ISS PBL14 START 123.884
HIERARCH ESO ISS PBL14 END 124.147
HIERARCH ESO ISS PBLA14 START 54.23
HIERARCH ESO ISS PBLA14 END 54.767
HIERARCH ESO ISS PBL23 START 57.634
HIERARCH ESO ISS PBL23 END 57.687
HIERARCH ESO ISS PBLA23 START 39.3
HIERARCH ESO ISS PBLA23 END 39.8
HIERARCH ESO ISS PBL24 START 90.217
HIERARCH ESO ISS PBL24 END 90.2
HIERARCH ESO ISS PBLA24 START 13.041
HIERARCH ESO ISS PBLA24 END 13.447
HIERARCH ESO ISS PBL34 START 46.198
HIERARCH ESO ISS PBL34 END 46.252
HIERARCH ESO ISS PBLA34 START 339.552
HIERARCH ESO ISS PBLA34 END 339.822
HIERARCH ESO ISS AMBI TAU0 START 0.001939
HIERARCH ESO ISS AMBI TAU0 END 0.003053
HIERARCH ESO ISS AMBI TEMP 12.43
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.59