Exposure
ID
GRAVI.2025-11-18T04:17:02.581_1
Header ID
GRAVI.2025-11-18T04:17:02.581
Date updated
2025-11-18 07:05:24 UTC+0000
Release date
2025-11-18 04:17:02 UTC+0000
UTC Start
2025-11-18 04:17:02.581
UTC End
2025-11-18 04:20:14.581
MJD Start
60997.1785021
MJD End
60997.18072432223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0038925
Ambient temperature (°C)
15.67
Seeing (arcsec)
1.04
Observation
ID
71777
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
53286
Name
HD_50235
RA
102.715461
DEC
-34.36731
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 19.6210 19.7950 124.8000 125.0000
A0-D0 27.4500 27.5740 34.1000 35.0000
A0-C1 15.8690 16.0830 89.6280 90.1530
B2-D0 33.9310 33.9300 358.8000 359.3000
B2-C1 11.3030 11.3030 358.7580 359.2930
D0-C1 22.6280 22.6280 178.8030 179.3380
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 60997.1785021
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 50235
HIERARCH ESO INS SOBJ NAME HD_50235
RA 102.715461
DEC -34.36731
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 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 19.621
HIERARCH ESO ISS PBL12 END 19.795
HIERARCH ESO ISS PBLA12 START 124.8
HIERARCH ESO ISS PBLA12 END 125.0
HIERARCH ESO ISS PBL13 START 27.45
HIERARCH ESO ISS PBL13 END 27.574
HIERARCH ESO ISS PBLA13 START 34.1
HIERARCH ESO ISS PBLA13 END 35.0
HIERARCH ESO ISS PBL14 START 15.869
HIERARCH ESO ISS PBL14 END 16.083
HIERARCH ESO ISS PBLA14 START 89.628
HIERARCH ESO ISS PBLA14 END 90.153
HIERARCH ESO ISS PBL23 START 33.931
HIERARCH ESO ISS PBL23 END 33.93
HIERARCH ESO ISS PBLA23 START 358.8
HIERARCH ESO ISS PBLA23 END 359.3
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 358.758
HIERARCH ESO ISS PBLA24 END 359.293
HIERARCH ESO ISS PBL34 START 22.628
HIERARCH ESO ISS PBL34 END 22.628
HIERARCH ESO ISS PBLA34 START 178.803
HIERARCH ESO ISS PBLA34 END 179.338
HIERARCH ESO ISS AMBI TAU0 START 0.003837
HIERARCH ESO ISS AMBI TAU0 END 0.003948
HIERARCH ESO ISS AMBI TEMP 15.67
HIERARCH ESO ISS AMBI FWHM START 1.1
HIERARCH ESO ISS AMBI FWHM END 0.98