Exposure
ID
GRAVI.2021-12-31T06:29:16.012_1
Header ID
GRAVI.2021-12-31T06:29:16.012
Date updated
2021-12-31 06:36:44 UTC+0000
Release date
2022-12-31 06:36:44 UTC+0000
UTC Start
2021-12-31 06:29:16.012
UTC End
2021-12-31 06:31:56.012
MJD Start
59579.27032421
MJD End
59579.2721760619
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005496
Ambient temperature (°C)
13.48
Seeing (arcsec)
1.125
Observation
ID
49130
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
36765
Name
HD_259440
RA
98.245785
DEC
5.80032
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 70.7340 70.0840 115.6000 115.8000
A0-J2 112.4210 111.6030 89.7000 89.6000
A0-J3 132.3890 132.3540 50.4380 50.3520
G1-J2 57.7720 57.6910 57.3000 57.2000
G1-J3 121.0920 121.3070 18.4200 18.6490
J2-J3 84.3330 84.2410 352.9390 353.3870
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 59579.27032421
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 259440
HIERARCH ESO INS SOBJ NAME HD_259440
RA 98.245785
DEC 5.80032
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 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 70.734
HIERARCH ESO ISS PBL12 END 70.084
HIERARCH ESO ISS PBLA12 START 115.6
HIERARCH ESO ISS PBLA12 END 115.8
HIERARCH ESO ISS PBL13 START 112.421
HIERARCH ESO ISS PBL13 END 111.603
HIERARCH ESO ISS PBLA13 START 89.7
HIERARCH ESO ISS PBLA13 END 89.6
HIERARCH ESO ISS PBL14 START 132.389
HIERARCH ESO ISS PBL14 END 132.354
HIERARCH ESO ISS PBLA14 START 50.438
HIERARCH ESO ISS PBLA14 END 50.352
HIERARCH ESO ISS PBL23 START 57.772
HIERARCH ESO ISS PBL23 END 57.691
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.2
HIERARCH ESO ISS PBL24 START 121.092
HIERARCH ESO ISS PBL24 END 121.307
HIERARCH ESO ISS PBLA24 START 18.42
HIERARCH ESO ISS PBLA24 END 18.649
HIERARCH ESO ISS PBL34 START 84.333
HIERARCH ESO ISS PBL34 END 84.241
HIERARCH ESO ISS PBLA34 START 352.939
HIERARCH ESO ISS PBLA34 END 353.387
HIERARCH ESO ISS AMBI TAU0 START 0.004509
HIERARCH ESO ISS AMBI TAU0 END 0.006483
HIERARCH ESO ISS AMBI TEMP 13.48
HIERARCH ESO ISS AMBI FWHM START 1.29
HIERARCH ESO ISS AMBI FWHM END 0.96