Exposure
ID
GRAVI.2025-08-23T02:23:29.876_1
Header ID
GRAVI.2025-08-23T02:23:29.876
Date updated
2025-08-23 02:36:32 UTC+0000
Release date
2025-08-23 02:23:29 UTC+0000
UTC Start
2025-08-23 02:23:29.876
UTC End
2025-08-23 02:26:09.876
MJD Start
60910.09965134
MJD End
60910.10150319186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0024920000000000003
Ambient temperature (°C)
2.6
Seeing (arcsec)
0.98
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 48.6420 48.6440 170.2000 170.6000
A0-J2 115.2240 114.6840 116.7000 117.3000
A0-J6 150.8410 150.3200 40.3110 40.5260
B5-J2 94.7240 94.1060 92.3000 92.8000
B5-J6 185.8110 185.4170 28.7190 28.9460
J2-J6 166.8690 166.8740 358.1560 358.5350
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 60910.09965134
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 48.642
HIERARCH ESO ISS PBL12 END 48.644
HIERARCH ESO ISS PBLA12 START 170.2
HIERARCH ESO ISS PBLA12 END 170.6
HIERARCH ESO ISS PBL13 START 115.224
HIERARCH ESO ISS PBL13 END 114.684
HIERARCH ESO ISS PBLA13 START 116.7
HIERARCH ESO ISS PBLA13 END 117.3
HIERARCH ESO ISS PBL14 START 150.841
HIERARCH ESO ISS PBL14 END 150.32
HIERARCH ESO ISS PBLA14 START 40.311
HIERARCH ESO ISS PBLA14 END 40.526
HIERARCH ESO ISS PBL23 START 94.724
HIERARCH ESO ISS PBL23 END 94.106
HIERARCH ESO ISS PBLA23 START 92.3
HIERARCH ESO ISS PBLA23 END 92.8
HIERARCH ESO ISS PBL24 START 185.811
HIERARCH ESO ISS PBL24 END 185.417
HIERARCH ESO ISS PBLA24 START 28.719
HIERARCH ESO ISS PBLA24 END 28.946
HIERARCH ESO ISS PBL34 START 166.869
HIERARCH ESO ISS PBL34 END 166.874
HIERARCH ESO ISS PBLA34 START 358.156
HIERARCH ESO ISS PBLA34 END 358.535
HIERARCH ESO ISS AMBI TAU0 START 0.001974
HIERARCH ESO ISS AMBI TAU0 END 0.00301
HIERARCH ESO ISS AMBI TEMP 2.6
HIERARCH ESO ISS AMBI FWHM START 1.02
HIERARCH ESO ISS AMBI FWHM END 0.94