Exposure
ID
GRAVI.2025-11-19T05:42:57.198_1
Header ID
GRAVI.2025-11-19T05:42:57.198
Date updated
2025-11-19 06:15:47 UTC+0000
Release date
2025-11-19 05:42:57 UTC+0000
UTC Start
2025-11-19 05:42:57.198
UTC End
2025-11-19 05:45:37.198
MJD Start
60998.23816201
MJD End
60998.240013861854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0058765
Ambient temperature (°C)
13.67
Seeing (arcsec)
0.825
Observation
ID
71809
Category
calibrator
Program ID
116.28P0.001
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 / ERCOLINO / JANIK
Target
ID
53309
Name
bet_Vol
RA
126.428169
DEC
-66.13776
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 16.0120 16.1350 93.0000 93.8000
A0-D0 31.9340 31.9410 27.9000 28.7000
A0-C1 17.9590 18.0340 60.4940 61.4470
B2-D0 29.0860 29.0900 357.9000 358.5000
B2-C1 9.6860 9.6870 357.8760 358.4780
D0-C1 19.4000 19.4030 177.9290 178.5310
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60998.23816201
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME bet Vol
HIERARCH ESO INS SOBJ NAME bet_Vol
RA 126.428169
DEC -66.13776
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 216.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 160
HIERARCH ESO ISS PBL12 START 16.012
HIERARCH ESO ISS PBL12 END 16.135
HIERARCH ESO ISS PBLA12 START 93.0
HIERARCH ESO ISS PBLA12 END 93.8
HIERARCH ESO ISS PBL13 START 31.934
HIERARCH ESO ISS PBL13 END 31.941
HIERARCH ESO ISS PBLA13 START 27.9
HIERARCH ESO ISS PBLA13 END 28.7
HIERARCH ESO ISS PBL14 START 17.959
HIERARCH ESO ISS PBL14 END 18.034
HIERARCH ESO ISS PBLA14 START 60.494
HIERARCH ESO ISS PBLA14 END 61.447
HIERARCH ESO ISS PBL23 START 29.086
HIERARCH ESO ISS PBL23 END 29.09
HIERARCH ESO ISS PBLA23 START 357.9
HIERARCH ESO ISS PBLA23 END 358.5
HIERARCH ESO ISS PBL24 START 9.686
HIERARCH ESO ISS PBL24 END 9.687
HIERARCH ESO ISS PBLA24 START 357.876
HIERARCH ESO ISS PBLA24 END 358.478
HIERARCH ESO ISS PBL34 START 19.4
HIERARCH ESO ISS PBL34 END 19.403
HIERARCH ESO ISS PBLA34 START 177.929
HIERARCH ESO ISS PBLA34 END 178.531
HIERARCH ESO ISS AMBI TAU0 START 0.005488
HIERARCH ESO ISS AMBI TAU0 END 0.006265
HIERARCH ESO ISS AMBI TEMP 13.67
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.84