Exposure
ID
GRAVI.2022-01-01T04:33:12.637_1
Header ID
GRAVI.2022-01-01T04:33:12.637
Date updated
2022-01-01 04:46:01 UTC+0000
Release date
2023-01-01 04:46:01 UTC+0000
UTC Start
2022-01-01 04:33:12.637
UTC End
2022-01-01 04:37:12.637
MJD Start
59580.1897296
MJD End
59580.1925073778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004346
Ambient temperature (°C)
15.09
Seeing (arcsec)
1.055
Observation
ID
49137
Category
science
Program ID
108.222E.001
Program Title
THE ORIGIN OF BE STARS AND THE ELUSIVE MASSIVE HELIUM STARS
Program Type
Normal
PI / COI
SHENAR/ BODENSTEINER/ SANA/ DSILVA/ LANGER/ SCHÜRMANN/ OSKINOVA/ MAHY/ LANTHERMANN/ BORDIER/ FROST/ MARCHANT/ GILKIS/ KLUSKA
Target
ID
36769
Name
HD__44458
RA
95.351829
DEC
-11.77323
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.5540 89.3190 116.2000 116.5000
A0-J2 128.9720 128.7940 93.4000 93.6000
A0-J3 131.5290 131.7310 47.6510 47.9490
G1-J2 58.0260 58.0950 56.6000 56.8000
G1-J3 129.3150 129.3870 7.5020 7.9550
J2-J3 101.2760 101.1370 341.8540 342.3150
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.222E.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59580.1897296
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 44458
HIERARCH ESO INS SOBJ NAME HD__44458
RA 95.351829
DEC -11.77323
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 265.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 80
HIERARCH ESO ISS PBL12 START 89.554
HIERARCH ESO ISS PBL12 END 89.319
HIERARCH ESO ISS PBLA12 START 116.2
HIERARCH ESO ISS PBLA12 END 116.5
HIERARCH ESO ISS PBL13 START 128.972
HIERARCH ESO ISS PBL13 END 128.794
HIERARCH ESO ISS PBLA13 START 93.4
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 131.529
HIERARCH ESO ISS PBL14 END 131.731
HIERARCH ESO ISS PBLA14 START 47.651
HIERARCH ESO ISS PBLA14 END 47.949
HIERARCH ESO ISS PBL23 START 58.026
HIERARCH ESO ISS PBL23 END 58.095
HIERARCH ESO ISS PBLA23 START 56.6
HIERARCH ESO ISS PBLA23 END 56.8
HIERARCH ESO ISS PBL24 START 129.315
HIERARCH ESO ISS PBL24 END 129.387
HIERARCH ESO ISS PBLA24 START 7.502
HIERARCH ESO ISS PBLA24 END 7.955
HIERARCH ESO ISS PBL34 START 101.276
HIERARCH ESO ISS PBL34 END 101.137
HIERARCH ESO ISS PBLA34 START 341.854
HIERARCH ESO ISS PBLA34 END 342.315
HIERARCH ESO ISS AMBI TAU0 START 0.004494
HIERARCH ESO ISS AMBI TAU0 END 0.004198
HIERARCH ESO ISS AMBI TEMP 15.09
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 1.04