Exposure
ID
GRAVI.2025-05-27T03:49:14.676_1
Header ID
GRAVI.2025-05-27T03:49:14.676
Date updated
2025-05-27 04:01:03 UTC+0000
Release date
2026-05-27 04:01:03 UTC+0000
UTC Start
2025-05-27 03:49:14.676
UTC End
2025-05-27 03:51:54.676
MJD Start
60822.15919764
MJD End
60822.16104949186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0024805
Ambient temperature (°C)
12.41
Seeing (arcsec)
0.6799999999999999
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 80.2610 80.6790 99.6000 100.0000
A0-J2 118.5850 119.0860 74.2000 74.8000
A0-K0 122.9430 123.2280 52.3770 52.9280
G1-J2 57.4420 57.5000 37.5000 38.0000
G1-K0 90.2660 90.2530 11.6560 12.0660
J2-K0 46.0060 46.0640 338.6500 338.9140
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 60822.15919764
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 80.261
HIERARCH ESO ISS PBL12 END 80.679
HIERARCH ESO ISS PBLA12 START 99.6
HIERARCH ESO ISS PBLA12 END 100.0
HIERARCH ESO ISS PBL13 START 118.585
HIERARCH ESO ISS PBL13 END 119.086
HIERARCH ESO ISS PBLA13 START 74.2
HIERARCH ESO ISS PBLA13 END 74.8
HIERARCH ESO ISS PBL14 START 122.943
HIERARCH ESO ISS PBL14 END 123.228
HIERARCH ESO ISS PBLA14 START 52.377
HIERARCH ESO ISS PBLA14 END 52.928
HIERARCH ESO ISS PBL23 START 57.442
HIERARCH ESO ISS PBL23 END 57.5
HIERARCH ESO ISS PBLA23 START 37.5
HIERARCH ESO ISS PBLA23 END 38.0
HIERARCH ESO ISS PBL24 START 90.266
HIERARCH ESO ISS PBL24 END 90.253
HIERARCH ESO ISS PBLA24 START 11.656
HIERARCH ESO ISS PBLA24 END 12.066
HIERARCH ESO ISS PBL34 START 46.006
HIERARCH ESO ISS PBL34 END 46.064
HIERARCH ESO ISS PBLA34 START 338.65
HIERARCH ESO ISS PBLA34 END 338.914
HIERARCH ESO ISS AMBI TAU0 START 0.002242
HIERARCH ESO ISS AMBI TAU0 END 0.002719
HIERARCH ESO ISS AMBI TEMP 12.41
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.67