Exposure
ID
GRAVI.2025-11-18T04:08:50.561_1
Header ID
GRAVI.2025-11-18T04:08:50.561
Date updated
2025-11-18 07:05:24 UTC+0000
Release date
2025-11-18 04:08:50 UTC+0000
UTC Start
2025-11-18 04:08:50.561
UTC End
2025-11-18 04:12:02.561
MJD Start
60997.17280742
MJD End
60997.175029642225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0036950000000000004
Ambient temperature (°C)
15.71
Seeing (arcsec)
1.0950000000000002
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 19.2270 19.4070 124.4000 124.6000
A0-D0 27.1810 27.3020 32.1000 33.0000
A0-C1 15.3860 15.6060 88.4390 88.9810
B2-D0 33.9310 33.9310 357.6000 358.1000
B2-C1 11.3030 11.3030 357.5770 358.1100
D0-C1 22.6280 22.6280 177.6200 178.1540
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 60997.17280742
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 19.227
HIERARCH ESO ISS PBL12 END 19.407
HIERARCH ESO ISS PBLA12 START 124.4
HIERARCH ESO ISS PBLA12 END 124.6
HIERARCH ESO ISS PBL13 START 27.181
HIERARCH ESO ISS PBL13 END 27.302
HIERARCH ESO ISS PBLA13 START 32.1
HIERARCH ESO ISS PBLA13 END 33.0
HIERARCH ESO ISS PBL14 START 15.386
HIERARCH ESO ISS PBL14 END 15.606
HIERARCH ESO ISS PBLA14 START 88.439
HIERARCH ESO ISS PBLA14 END 88.981
HIERARCH ESO ISS PBL23 START 33.931
HIERARCH ESO ISS PBL23 END 33.931
HIERARCH ESO ISS PBLA23 START 357.6
HIERARCH ESO ISS PBLA23 END 358.1
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 357.577
HIERARCH ESO ISS PBLA24 END 358.11
HIERARCH ESO ISS PBL34 START 22.628
HIERARCH ESO ISS PBL34 END 22.628
HIERARCH ESO ISS PBLA34 START 177.62
HIERARCH ESO ISS PBLA34 END 178.154
HIERARCH ESO ISS AMBI TAU0 START 0.003911
HIERARCH ESO ISS AMBI TAU0 END 0.003479
HIERARCH ESO ISS AMBI TEMP 15.71
HIERARCH ESO ISS AMBI FWHM START 1.1
HIERARCH ESO ISS AMBI FWHM END 1.09