Exposure
ID
GRAVI.2025-11-20T05:01:59.964_1
Header ID
GRAVI.2025-11-20T05:01:59.964
Date updated
2025-11-20 05:15:54 UTC+0000
Release date
2025-11-20 05:01:59 UTC+0000
UTC Start
2025-11-20 05:01:59.964
UTC End
2025-11-20 05:05:11.964
MJD Start
60999.20972181
MJD End
60999.21194403223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0015
Ambient temperature (°C)
12.27
Seeing (arcsec)
2.005
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 21.8360 21.9690 127.8000 128.1000
A0-D0 29.2590 29.3830 46.0000 46.7000
A0-C1 18.6310 18.7990 96.6240 97.0860
B2-D0 33.9340 33.9340 6.4000 6.9000
B2-C1 11.3040 11.3040 6.3590 6.8860
D0-C1 22.6300 22.6300 186.4110 186.9390
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 60999.20972181
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 21.836
HIERARCH ESO ISS PBL12 END 21.969
HIERARCH ESO ISS PBLA12 START 127.8
HIERARCH ESO ISS PBLA12 END 128.1
HIERARCH ESO ISS PBL13 START 29.259
HIERARCH ESO ISS PBL13 END 29.383
HIERARCH ESO ISS PBLA13 START 46.0
HIERARCH ESO ISS PBLA13 END 46.7
HIERARCH ESO ISS PBL14 START 18.631
HIERARCH ESO ISS PBL14 END 18.799
HIERARCH ESO ISS PBLA14 START 96.624
HIERARCH ESO ISS PBLA14 END 97.086
HIERARCH ESO ISS PBL23 START 33.934
HIERARCH ESO ISS PBL23 END 33.934
HIERARCH ESO ISS PBLA23 START 6.4
HIERARCH ESO ISS PBLA23 END 6.9
HIERARCH ESO ISS PBL24 START 11.304
HIERARCH ESO ISS PBL24 END 11.304
HIERARCH ESO ISS PBLA24 START 6.359
HIERARCH ESO ISS PBLA24 END 6.886
HIERARCH ESO ISS PBL34 START 22.63
HIERARCH ESO ISS PBL34 END 22.63
HIERARCH ESO ISS PBLA34 START 186.411
HIERARCH ESO ISS PBLA34 END 186.939
HIERARCH ESO ISS AMBI TAU0 START 0.001351
HIERARCH ESO ISS AMBI TAU0 END 0.001649
HIERARCH ESO ISS AMBI TEMP 12.27
HIERARCH ESO ISS AMBI FWHM START 2.17
HIERARCH ESO ISS AMBI FWHM END 1.84