Exposure
ID
GRAVI.2021-12-31T07:21:34.144_1
Header ID
GRAVI.2021-12-31T07:21:34.144
Date updated
2021-12-31 07:30:39 UTC+0000
Release date
2021-12-31 07:21:34 UTC+0000
UTC Start
2021-12-31 07:21:34.144
UTC End
2021-12-31 07:24:14.144
MJD Start
59579.30664518
MJD End
59579.3084970319
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0088615
Ambient temperature (°C)
14.04
Seeing (arcsec)
0.865
Observation
ID
49131
Category
calibrator
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
36766
Name
HD_45315
RA
96.718631
DEC
4.06962
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 57.5220 56.7780 122.9000 123.3000
A0-J2 92.7320 91.5860 89.7000 89.6000
A0-J3 128.7880 128.4920 48.1130 47.9430
G1-J2 54.6360 54.4270 54.4000 54.2000
G1-J3 126.5110 126.6960 22.0840 22.2380
J2-J3 85.4830 85.5130 2.1010 2.5510
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.222E.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59579.30664518
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 45315
HIERARCH ESO INS SOBJ NAME HD_45315
RA 96.718631
DEC 4.06962
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 57.522
HIERARCH ESO ISS PBL12 END 56.778
HIERARCH ESO ISS PBLA12 START 122.9
HIERARCH ESO ISS PBLA12 END 123.3
HIERARCH ESO ISS PBL13 START 92.732
HIERARCH ESO ISS PBL13 END 91.586
HIERARCH ESO ISS PBLA13 START 89.7
HIERARCH ESO ISS PBLA13 END 89.6
HIERARCH ESO ISS PBL14 START 128.788
HIERARCH ESO ISS PBL14 END 128.492
HIERARCH ESO ISS PBLA14 START 48.113
HIERARCH ESO ISS PBLA14 END 47.943
HIERARCH ESO ISS PBL23 START 54.636
HIERARCH ESO ISS PBL23 END 54.427
HIERARCH ESO ISS PBLA23 START 54.4
HIERARCH ESO ISS PBLA23 END 54.2
HIERARCH ESO ISS PBL24 START 126.511
HIERARCH ESO ISS PBL24 END 126.696
HIERARCH ESO ISS PBLA24 START 22.084
HIERARCH ESO ISS PBLA24 END 22.238
HIERARCH ESO ISS PBL34 START 85.483
HIERARCH ESO ISS PBL34 END 85.513
HIERARCH ESO ISS PBLA34 START 2.101
HIERARCH ESO ISS PBLA34 END 2.551
HIERARCH ESO ISS AMBI TAU0 START 0.0074
HIERARCH ESO ISS AMBI TAU0 END 0.010323
HIERARCH ESO ISS AMBI TEMP 14.04
HIERARCH ESO ISS AMBI FWHM START 0.98
HIERARCH ESO ISS AMBI FWHM END 0.75