Exposure
ID
GRAVI.2025-11-20T04:45:35.923_1
Header ID
GRAVI.2025-11-20T04:45:35.923
Date updated
2025-11-20 05:01:07 UTC+0000
Release date
2025-11-20 04:45:35 UTC+0000
UTC Start
2025-11-20 04:45:35.923
UTC End
2025-11-20 04:48:47.923
MJD Start
60999.19833244
MJD End
60999.200554662224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.001414
Ambient temperature (°C)
12.62
Seeing (arcsec)
1.97
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 21.2110 21.3570 126.8000 127.0000
A0-D0 28.7000 28.8280 42.5000 43.3000
A0-C1 17.8440 18.0280 94.5480 95.0230
B2-D0 33.9320 33.9320 4.0000 4.6000
B2-C1 11.3030 11.3030 4.0150 4.5460
D0-C1 22.6290 22.6290 184.0650 184.5970
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 60999.19833244
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 21.211
HIERARCH ESO ISS PBL12 END 21.357
HIERARCH ESO ISS PBLA12 START 126.8
HIERARCH ESO ISS PBLA12 END 127.0
HIERARCH ESO ISS PBL13 START 28.7
HIERARCH ESO ISS PBL13 END 28.828
HIERARCH ESO ISS PBLA13 START 42.5
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 17.844
HIERARCH ESO ISS PBL14 END 18.028
HIERARCH ESO ISS PBLA14 START 94.548
HIERARCH ESO ISS PBLA14 END 95.023
HIERARCH ESO ISS PBL23 START 33.932
HIERARCH ESO ISS PBL23 END 33.932
HIERARCH ESO ISS PBLA23 START 4.0
HIERARCH ESO ISS PBLA23 END 4.6
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 4.015
HIERARCH ESO ISS PBLA24 END 4.546
HIERARCH ESO ISS PBL34 START 22.629
HIERARCH ESO ISS PBL34 END 22.629
HIERARCH ESO ISS PBLA34 START 184.065
HIERARCH ESO ISS PBLA34 END 184.597
HIERARCH ESO ISS AMBI TAU0 START 0.001394
HIERARCH ESO ISS AMBI TAU0 END 0.001434
HIERARCH ESO ISS AMBI TEMP 12.62
HIERARCH ESO ISS AMBI FWHM START 1.81
HIERARCH ESO ISS AMBI FWHM END 2.13