Exposure
ID
GRAVI.2022-01-01T04:22:45.611_1
Header ID
GRAVI.2022-01-01T04:22:45.611
Date updated
2022-01-01 04:36:31 UTC+0000
Release date
2023-01-01 04:36:30 UTC+0000
UTC Start
2022-01-01 04:22:45.611
UTC End
2022-01-01 04:26:45.611
MJD Start
59580.18247235
MJD End
59580.1852501278
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004943
Ambient temperature (°C)
15.03
Seeing (arcsec)
0.99
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 90.0090 89.8350 115.6000 115.8000
A0-J2 129.2120 129.1430 92.9000 93.1000
A0-J3 130.9530 131.2120 46.8820 47.2130
G1-J2 57.8040 57.9070 55.9000 56.2000
G1-J3 129.1590 129.2220 6.3980 6.8640
J2-J3 101.6040 101.4670 340.7700 341.2210
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 59580.18247235
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 90.009
HIERARCH ESO ISS PBL12 END 89.835
HIERARCH ESO ISS PBLA12 START 115.6
HIERARCH ESO ISS PBLA12 END 115.8
HIERARCH ESO ISS PBL13 START 129.212
HIERARCH ESO ISS PBL13 END 129.143
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 93.1
HIERARCH ESO ISS PBL14 START 130.953
HIERARCH ESO ISS PBL14 END 131.212
HIERARCH ESO ISS PBLA14 START 46.882
HIERARCH ESO ISS PBLA14 END 47.213
HIERARCH ESO ISS PBL23 START 57.804
HIERARCH ESO ISS PBL23 END 57.907
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 129.159
HIERARCH ESO ISS PBL24 END 129.222
HIERARCH ESO ISS PBLA24 START 6.398
HIERARCH ESO ISS PBLA24 END 6.864
HIERARCH ESO ISS PBL34 START 101.604
HIERARCH ESO ISS PBL34 END 101.467
HIERARCH ESO ISS PBLA34 START 340.77
HIERARCH ESO ISS PBLA34 END 341.221
HIERARCH ESO ISS AMBI TAU0 START 0.004844
HIERARCH ESO ISS AMBI TAU0 END 0.005042
HIERARCH ESO ISS AMBI TEMP 15.03
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 0.92