Exposure
ID
PIONI.2021-11-02T04:30:28.496_1
Header ID
PIONI.2021-11-02T04:30:28.496
Date updated
2021-11-02 04:36:24 UTC+0000
Release date
2021-11-02 04:30:28 UTC+0000
UTC Start
2021-11-02 04:30:28.496
UTC End
2021-11-02 04:30:54.096
MJD Start
59520.18782982
MJD End
59520.1881261163
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003132
Ambient temperature (°C)
11.18
Seeing (arcsec)
0.985
Observation
ID
48708
Category
calibrator
Program ID
108.227F.001
Program Title
THE FIRST INTERFEROMETRIC IMAGE OF A SUNLIKE STAR: EPS ERIDANI
Program Type
Normal
PI / COI
ROETTENBACHER/ KORHONEN/ FISCHER/ DAVIES
Target
ID
36479
Name
bet Eri
RA
76.960917
DEC
-5.08681
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 24.8830 24.8910 136.1000 136.1000
A0-D0 23.9310 23.9780 61.6000 61.7000
A0-C1 20.2340 20.2570 113.8000 113.7840
B2-D0 29.5510 29.5560 7.4000 7.5000
B2-C1 9.8460 9.8480 7.3380 7.4320
D0-C1 19.7050 19.7080 187.4000 187.4940
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59520.18782982
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.960917
DEC -5.08681
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 24.883
HIERARCH ESO ISS PBL12 END 24.891
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 23.931
HIERARCH ESO ISS PBL13 END 23.978
HIERARCH ESO ISS PBLA13 START 61.6
HIERARCH ESO ISS PBLA13 END 61.7
HIERARCH ESO ISS PBL14 START 20.234
HIERARCH ESO ISS PBL14 END 20.257
HIERARCH ESO ISS PBLA14 START 113.8
HIERARCH ESO ISS PBLA14 END 113.784
HIERARCH ESO ISS PBL23 START 29.551
HIERARCH ESO ISS PBL23 END 29.556
HIERARCH ESO ISS PBLA23 START 7.4
HIERARCH ESO ISS PBLA23 END 7.5
HIERARCH ESO ISS PBL24 START 9.846
HIERARCH ESO ISS PBL24 END 9.848
HIERARCH ESO ISS PBLA24 START 7.338
HIERARCH ESO ISS PBLA24 END 7.432
HIERARCH ESO ISS PBL34 START 19.705
HIERARCH ESO ISS PBL34 END 19.708
HIERARCH ESO ISS PBLA34 START 187.4
HIERARCH ESO ISS PBLA34 END 187.494
HIERARCH ESO ISS AMBI TAU0 START 0.003284
HIERARCH ESO ISS AMBI TAU0 END 0.00298
HIERARCH ESO ISS AMBI TEMP 11.18
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 0.96