Exposure
ID
GRAVI.2025-08-23T02:16:47.859_1
Header ID
GRAVI.2025-08-23T02:16:47.859
Date updated
2025-08-23 02:26:04 UTC+0000
Release date
2025-08-23 02:16:47 UTC+0000
UTC Start
2025-08-23 02:16:47.859
UTC End
2025-08-23 02:19:27.859
MJD Start
60910.09499837
MJD End
60910.09685022185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0020469999999999998
Ambient temperature (°C)
2.65
Seeing (arcsec)
1.19
Observation
ID
70071
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
51986
Name
HD_157097
RA
260.726869
DEC
-37.22101
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 48.6370 48.6390 169.2000 169.6000
A0-J2 116.4250 115.9010 115.4000 116.0000
A0-J6 151.9920 151.4910 39.8120 40.0340
B5-J2 96.0910 95.4950 91.3000 91.7000
B5-J6 186.6770 186.3000 28.1940 28.4270
J2-J6 166.8510 166.8600 357.2940 357.6730
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 60910.09499837
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 157097
HIERARCH ESO INS SOBJ NAME HD_157097
RA 260.726869
DEC -37.22101
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 48.637
HIERARCH ESO ISS PBL12 END 48.639
HIERARCH ESO ISS PBLA12 START 169.2
HIERARCH ESO ISS PBLA12 END 169.6
HIERARCH ESO ISS PBL13 START 116.425
HIERARCH ESO ISS PBL13 END 115.901
HIERARCH ESO ISS PBLA13 START 115.4
HIERARCH ESO ISS PBLA13 END 116.0
HIERARCH ESO ISS PBL14 START 151.992
HIERARCH ESO ISS PBL14 END 151.491
HIERARCH ESO ISS PBLA14 START 39.812
HIERARCH ESO ISS PBLA14 END 40.034
HIERARCH ESO ISS PBL23 START 96.091
HIERARCH ESO ISS PBL23 END 95.495
HIERARCH ESO ISS PBLA23 START 91.3
HIERARCH ESO ISS PBLA23 END 91.7
HIERARCH ESO ISS PBL24 START 186.677
HIERARCH ESO ISS PBL24 END 186.3
HIERARCH ESO ISS PBLA24 START 28.194
HIERARCH ESO ISS PBLA24 END 28.427
HIERARCH ESO ISS PBL34 START 166.851
HIERARCH ESO ISS PBL34 END 166.86
HIERARCH ESO ISS PBLA34 START 357.294
HIERARCH ESO ISS PBLA34 END 357.673
HIERARCH ESO ISS AMBI TAU0 START 0.002315
HIERARCH ESO ISS AMBI TAU0 END 0.001779
HIERARCH ESO ISS AMBI TEMP 2.65
HIERARCH ESO ISS AMBI FWHM START 1.32
HIERARCH ESO ISS AMBI FWHM END 1.06