Exposure
ID
GRAVI.2025-08-23T02:26:47.885_1
Header ID
GRAVI.2025-08-23T02:26:47.885
Date updated
2025-08-23 02:36:32 UTC+0000
Release date
2025-08-23 02:26:47 UTC+0000
UTC Start
2025-08-23 02:26:47.885
UTC End
2025-08-23 02:29:27.885
MJD Start
60910.10194311
MJD End
60910.103794961855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002973
Ambient temperature (°C)
2.64
Seeing (arcsec)
0.935
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 48.6440 48.6460 170.7000 171.1000
A0-J2 114.6250 114.0780 117.3000 117.9000
A0-J6 150.2640 149.7330 40.5490 40.7600
B5-J2 94.0390 93.4110 92.8000 93.3000
B5-J6 185.3750 184.9730 28.9700 29.1940
J2-J6 166.8750 166.8790 358.5760 358.9560
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 60910.10194311
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 48.644
HIERARCH ESO ISS PBL12 END 48.646
HIERARCH ESO ISS PBLA12 START 170.7
HIERARCH ESO ISS PBLA12 END 171.1
HIERARCH ESO ISS PBL13 START 114.625
HIERARCH ESO ISS PBL13 END 114.078
HIERARCH ESO ISS PBLA13 START 117.3
HIERARCH ESO ISS PBLA13 END 117.9
HIERARCH ESO ISS PBL14 START 150.264
HIERARCH ESO ISS PBL14 END 149.733
HIERARCH ESO ISS PBLA14 START 40.549
HIERARCH ESO ISS PBLA14 END 40.76
HIERARCH ESO ISS PBL23 START 94.039
HIERARCH ESO ISS PBL23 END 93.411
HIERARCH ESO ISS PBLA23 START 92.8
HIERARCH ESO ISS PBLA23 END 93.3
HIERARCH ESO ISS PBL24 START 185.375
HIERARCH ESO ISS PBL24 END 184.973
HIERARCH ESO ISS PBLA24 START 28.97
HIERARCH ESO ISS PBLA24 END 29.194
HIERARCH ESO ISS PBL34 START 166.875
HIERARCH ESO ISS PBL34 END 166.879
HIERARCH ESO ISS PBLA34 START 358.576
HIERARCH ESO ISS PBLA34 END 358.956
HIERARCH ESO ISS AMBI TAU0 START 0.00301
HIERARCH ESO ISS AMBI TAU0 END 0.002936
HIERARCH ESO ISS AMBI TEMP 2.64
HIERARCH ESO ISS AMBI FWHM START 0.94
HIERARCH ESO ISS AMBI FWHM END 0.93