Exposure
ID
GRAVI.2025-08-02T04:28:36.127_1
Header ID
GRAVI.2025-08-02T04:28:36.127
Date updated
2025-08-02 04:40:50 UTC+0000
Release date
2025-08-02 04:28:36 UTC+0000
UTC Start
2025-08-02 04:28:36.127
UTC End
2025-08-02 04:31:16.127
MJD Start
60889.18652925
MJD End
60889.188381101856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002471
Ambient temperature (°C)
10.09
Seeing (arcsec)
1.385
Observation
ID
68989
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
51321
Name
HD_157097
RA
260.725474
DEC
-37.22101
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 83.7740 83.5910 148.4000 149.1000
A0-J2 106.9060 106.3000 125.8000 126.4000
A0-K0 97.0580 96.2080 99.4240 99.9600
G1-J2 43.8100 43.4220 78.3000 78.6000
G1-K0 75.9630 75.6160 43.0860 43.2570
J2-K0 47.4340 47.4130 10.9280 11.2470
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 60889.18652925
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 157097
HIERARCH ESO INS SOBJ NAME HD_157097
RA 260.725474
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 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 83.774
HIERARCH ESO ISS PBL12 END 83.591
HIERARCH ESO ISS PBLA12 START 148.4
HIERARCH ESO ISS PBLA12 END 149.1
HIERARCH ESO ISS PBL13 START 106.906
HIERARCH ESO ISS PBL13 END 106.3
HIERARCH ESO ISS PBLA13 START 125.8
HIERARCH ESO ISS PBLA13 END 126.4
HIERARCH ESO ISS PBL14 START 97.058
HIERARCH ESO ISS PBL14 END 96.208
HIERARCH ESO ISS PBLA14 START 99.424
HIERARCH ESO ISS PBLA14 END 99.96
HIERARCH ESO ISS PBL23 START 43.81
HIERARCH ESO ISS PBL23 END 43.422
HIERARCH ESO ISS PBLA23 START 78.3
HIERARCH ESO ISS PBLA23 END 78.6
HIERARCH ESO ISS PBL24 START 75.963
HIERARCH ESO ISS PBL24 END 75.616
HIERARCH ESO ISS PBLA24 START 43.086
HIERARCH ESO ISS PBLA24 END 43.257
HIERARCH ESO ISS PBL34 START 47.434
HIERARCH ESO ISS PBL34 END 47.413
HIERARCH ESO ISS PBLA34 START 10.928
HIERARCH ESO ISS PBLA34 END 11.247
HIERARCH ESO ISS AMBI TAU0 START 0.002471
HIERARCH ESO ISS AMBI TAU0 END 0.002471
HIERARCH ESO ISS AMBI TEMP 10.09
HIERARCH ESO ISS AMBI FWHM START 1.37
HIERARCH ESO ISS AMBI FWHM END 1.4