Exposure
ID
GRAVI.2021-12-31T06:36:16.030_1
Header ID
GRAVI.2021-12-31T06:36:16.030
Date updated
2021-12-31 06:46:23 UTC+0000
Release date
2022-12-31 06:46:23 UTC+0000
UTC Start
2021-12-31 06:36:16.030
UTC End
2021-12-31 06:38:56.030
MJD Start
59579.27518553
MJD End
59579.2770373819
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004183
Ambient temperature (°C)
13.64
Seeing (arcsec)
1.52
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 69.1670 68.4940 116.0000 116.2000
A0-J2 110.4380 109.5720 89.5000 89.4000
A0-J3 132.2850 132.2200 50.2250 50.1270
G1-J2 57.5680 57.4710 57.0000 56.9000
G1-J3 121.6070 121.8240 18.9620 19.1840
J2-J3 84.1230 84.0450 354.0120 354.4680
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 59579.27518553
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 69.167
HIERARCH ESO ISS PBL12 END 68.494
HIERARCH ESO ISS PBLA12 START 116.0
HIERARCH ESO ISS PBLA12 END 116.2
HIERARCH ESO ISS PBL13 START 110.438
HIERARCH ESO ISS PBL13 END 109.572
HIERARCH ESO ISS PBLA13 START 89.5
HIERARCH ESO ISS PBLA13 END 89.4
HIERARCH ESO ISS PBL14 START 132.285
HIERARCH ESO ISS PBL14 END 132.22
HIERARCH ESO ISS PBLA14 START 50.225
HIERARCH ESO ISS PBLA14 END 50.127
HIERARCH ESO ISS PBL23 START 57.568
HIERARCH ESO ISS PBL23 END 57.471
HIERARCH ESO ISS PBLA23 START 57.0
HIERARCH ESO ISS PBLA23 END 56.9
HIERARCH ESO ISS PBL24 START 121.607
HIERARCH ESO ISS PBL24 END 121.824
HIERARCH ESO ISS PBLA24 START 18.962
HIERARCH ESO ISS PBLA24 END 19.184
HIERARCH ESO ISS PBL34 START 84.123
HIERARCH ESO ISS PBL34 END 84.045
HIERARCH ESO ISS PBLA34 START 354.012
HIERARCH ESO ISS PBLA34 END 354.468
HIERARCH ESO ISS AMBI TAU0 START 0.002714
HIERARCH ESO ISS AMBI TAU0 END 0.005652
HIERARCH ESO ISS AMBI TEMP 13.64
HIERARCH ESO ISS AMBI FWHM START 2.01
HIERARCH ESO ISS AMBI FWHM END 1.03