Exposure
ID
GRAVI.2025-11-18T04:25:14.602_1
Header ID
GRAVI.2025-11-18T04:25:14.602
Date updated
2025-11-18 07:05:24 UTC+0000
Release date
2025-11-18 04:25:14 UTC+0000
UTC Start
2025-11-18 04:25:14.602
UTC End
2025-11-18 04:28:26.602
MJD Start
60997.18419678
MJD End
60997.186419002224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.00334
Ambient temperature (°C)
15.91
Seeing (arcsec)
1.005
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 20.0020 20.1700 125.2000 125.4000
A0-D0 27.7260 27.8520 36.1000 37.0000
A0-C1 16.3390 16.5460 90.7830 91.2940
B2-D0 33.9300 33.9300 360.0000 0.5000
B2-C1 11.3030 11.3030 359.9430 0.4770
D0-C1 22.6280 22.6280 179.9890 180.5240
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 60997.18419678
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 20.002
HIERARCH ESO ISS PBL12 END 20.17
HIERARCH ESO ISS PBLA12 START 125.2
HIERARCH ESO ISS PBLA12 END 125.4
HIERARCH ESO ISS PBL13 START 27.726
HIERARCH ESO ISS PBL13 END 27.852
HIERARCH ESO ISS PBLA13 START 36.1
HIERARCH ESO ISS PBLA13 END 37.0
HIERARCH ESO ISS PBL14 START 16.339
HIERARCH ESO ISS PBL14 END 16.546
HIERARCH ESO ISS PBLA14 START 90.783
HIERARCH ESO ISS PBLA14 END 91.294
HIERARCH ESO ISS PBL23 START 33.93
HIERARCH ESO ISS PBL23 END 33.93
HIERARCH ESO ISS PBLA23 START 360.0
HIERARCH ESO ISS PBLA23 END 0.5
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 359.943
HIERARCH ESO ISS PBLA24 END 0.477
HIERARCH ESO ISS PBL34 START 22.628
HIERARCH ESO ISS PBL34 END 22.628
HIERARCH ESO ISS PBLA34 START 179.989
HIERARCH ESO ISS PBLA34 END 180.524
HIERARCH ESO ISS AMBI TAU0 START 0.003554
HIERARCH ESO ISS AMBI TAU0 END 0.003126
HIERARCH ESO ISS AMBI TEMP 15.91
HIERARCH ESO ISS AMBI FWHM START 0.98
HIERARCH ESO ISS AMBI FWHM END 1.03