Exposure
ID
GRAVI.2025-08-02T05:48:48.332_1
Header ID
GRAVI.2025-08-02T05:48:48.332
Date updated
2025-08-02 06:00:50 UTC+0000
Release date
2025-08-02 05:48:48 UTC+0000
UTC Start
2025-08-02 05:48:48.332
UTC End
2025-08-02 05:51:28.332
MJD Start
60889.24222606
MJD End
60889.244077911855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0024930000000000004
Ambient temperature (°C)
10.14
Seeing (arcsec)
1.385
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 76.5950 76.4090 159.2000 160.0000
A0-J2 89.7120 88.9900 135.0000 135.8000
A0-K0 78.4840 77.3940 102.7020 103.2730
G1-J2 37.1870 36.7030 77.3000 77.5000
G1-K0 73.4280 73.0340 42.2580 42.3050
J2-K0 47.9760 47.9510 15.8490 16.1320
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 60889.24222606
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 76.595
HIERARCH ESO ISS PBL12 END 76.409
HIERARCH ESO ISS PBLA12 START 159.2
HIERARCH ESO ISS PBLA12 END 160.0
HIERARCH ESO ISS PBL13 START 89.712
HIERARCH ESO ISS PBL13 END 88.99
HIERARCH ESO ISS PBLA13 START 135.0
HIERARCH ESO ISS PBLA13 END 135.8
HIERARCH ESO ISS PBL14 START 78.484
HIERARCH ESO ISS PBL14 END 77.394
HIERARCH ESO ISS PBLA14 START 102.702
HIERARCH ESO ISS PBLA14 END 103.273
HIERARCH ESO ISS PBL23 START 37.187
HIERARCH ESO ISS PBL23 END 36.703
HIERARCH ESO ISS PBLA23 START 77.3
HIERARCH ESO ISS PBLA23 END 77.5
HIERARCH ESO ISS PBL24 START 73.428
HIERARCH ESO ISS PBL24 END 73.034
HIERARCH ESO ISS PBLA24 START 42.258
HIERARCH ESO ISS PBLA24 END 42.305
HIERARCH ESO ISS PBL34 START 47.976
HIERARCH ESO ISS PBL34 END 47.951
HIERARCH ESO ISS PBLA34 START 15.849
HIERARCH ESO ISS PBLA34 END 16.132
HIERARCH ESO ISS AMBI TAU0 START 0.002426
HIERARCH ESO ISS AMBI TAU0 END 0.00256
HIERARCH ESO ISS AMBI TEMP 10.14
HIERARCH ESO ISS AMBI FWHM START 1.18
HIERARCH ESO ISS AMBI FWHM END 1.59