Exposure
ID
GRAVI.2025-08-02T05:45:33.323_1
Header ID
GRAVI.2025-08-02T05:45:33.323
Date updated
2025-08-02 05:55:44 UTC+0000
Release date
2025-08-02 05:45:33 UTC+0000
UTC Start
2025-08-02 05:45:33.323
UTC End
2025-08-02 05:48:13.323
MJD Start
60889.23996902
MJD End
60889.24182087186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0022415
Ambient temperature (°C)
10.3
Seeing (arcsec)
1.45
Observation
ID
68990
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
51322
Name
HD_162415
RA
268.068378
DEC
-31.32825
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 76.8080 76.6150 158.4000 159.1000
A0-J2 90.5220 89.7900 134.0000 134.9000
A0-K0 79.6890 78.6010 102.0840 102.6440
G1-J2 37.7200 37.2390 77.0000 77.2000
G1-K0 73.8610 73.4700 42.2030 42.2550
J2-K0 48.0030 47.9790 15.5350 15.8200
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 60889.23996902
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 162415
HIERARCH ESO INS SOBJ NAME HD_162415
RA 268.068378
DEC -31.32825
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 76.808
HIERARCH ESO ISS PBL12 END 76.615
HIERARCH ESO ISS PBLA12 START 158.4
HIERARCH ESO ISS PBLA12 END 159.1
HIERARCH ESO ISS PBL13 START 90.522
HIERARCH ESO ISS PBL13 END 89.79
HIERARCH ESO ISS PBLA13 START 134.0
HIERARCH ESO ISS PBLA13 END 134.9
HIERARCH ESO ISS PBL14 START 79.689
HIERARCH ESO ISS PBL14 END 78.601
HIERARCH ESO ISS PBLA14 START 102.084
HIERARCH ESO ISS PBLA14 END 102.644
HIERARCH ESO ISS PBL23 START 37.72
HIERARCH ESO ISS PBL23 END 37.239
HIERARCH ESO ISS PBLA23 START 77.0
HIERARCH ESO ISS PBLA23 END 77.2
HIERARCH ESO ISS PBL24 START 73.861
HIERARCH ESO ISS PBL24 END 73.47
HIERARCH ESO ISS PBLA24 START 42.203
HIERARCH ESO ISS PBLA24 END 42.255
HIERARCH ESO ISS PBL34 START 48.003
HIERARCH ESO ISS PBL34 END 47.979
HIERARCH ESO ISS PBLA34 START 15.535
HIERARCH ESO ISS PBLA34 END 15.82
HIERARCH ESO ISS AMBI TAU0 START 0.002057
HIERARCH ESO ISS AMBI TAU0 END 0.002426
HIERARCH ESO ISS AMBI TEMP 10.3
HIERARCH ESO ISS AMBI FWHM START 1.72
HIERARCH ESO ISS AMBI FWHM END 1.18