Exposure
ID
GRAVI.2025-08-23T03:12:21.000_1
Header ID
GRAVI.2025-08-23T03:12:21.000
Date updated
2025-08-23 03:25:38 UTC+0000
Release date
2025-08-23 03:12:21 UTC+0000
UTC Start
2025-08-23 03:12:21.000
UTC End
2025-08-23 03:15:01.000
MJD Start
60910.13357639
MJD End
60910.135428241854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0023415
Ambient temperature (°C)
2.47
Seeing (arcsec)
1.0699999999999998
Observation
ID
70073
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
51988
Name
HD_162415
RA
268.069677
DEC
-31.32825
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.4720 48.4660 173.0000 173.5000
A0-J2 108.0890 107.3930 117.5000 118.1000
A0-J6 153.3540 152.8380 39.6680 39.8200
B5-J2 90.0370 89.2970 91.1000 91.5000
B5-J6 189.9450 189.5760 28.9790 29.1630
J2-J6 167.9610 167.9600 0.6810 1.0590
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 60910.13357639
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 162415
HIERARCH ESO INS SOBJ NAME HD_162415
RA 268.069677
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 48.472
HIERARCH ESO ISS PBL12 END 48.466
HIERARCH ESO ISS PBLA12 START 173.0
HIERARCH ESO ISS PBLA12 END 173.5
HIERARCH ESO ISS PBL13 START 108.089
HIERARCH ESO ISS PBL13 END 107.393
HIERARCH ESO ISS PBLA13 START 117.5
HIERARCH ESO ISS PBLA13 END 118.1
HIERARCH ESO ISS PBL14 START 153.354
HIERARCH ESO ISS PBL14 END 152.838
HIERARCH ESO ISS PBLA14 START 39.668
HIERARCH ESO ISS PBLA14 END 39.82
HIERARCH ESO ISS PBL23 START 90.037
HIERARCH ESO ISS PBL23 END 89.297
HIERARCH ESO ISS PBLA23 START 91.1
HIERARCH ESO ISS PBLA23 END 91.5
HIERARCH ESO ISS PBL24 START 189.945
HIERARCH ESO ISS PBL24 END 189.576
HIERARCH ESO ISS PBLA24 START 28.979
HIERARCH ESO ISS PBLA24 END 29.163
HIERARCH ESO ISS PBL34 START 167.961
HIERARCH ESO ISS PBL34 END 167.96
HIERARCH ESO ISS PBLA34 START 0.681
HIERARCH ESO ISS PBLA34 END 1.059
HIERARCH ESO ISS AMBI TAU0 START 0.002562
HIERARCH ESO ISS AMBI TAU0 END 0.002121
HIERARCH ESO ISS AMBI TEMP 2.47
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 1.13