Exposure
ID
PIONI.2021-11-05T08:15:36.340_1
Header ID
PIONI.2021-11-05T08:15:36.340
Date updated
2021-11-05 08:20:40 UTC+0000
Release date
2021-11-05 08:15:36 UTC+0000
UTC Start
2021-11-05 08:15:36.340
UTC End
2021-11-05 08:16:01.940
MJD Start
59523.3441705969
MJD End
59523.3444668932
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003054
Ambient temperature (°C)
9.92
Seeing (arcsec)
1.01
Observation
ID
48757
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
36517
Name
bet Eri
RA
76.961475
DEC
-5.08681
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 120.8910 120.8470 243.1000 243.1000
K0-D0 93.2120 93.1540 253.5000 253.5000
K0-J3 50.8940 50.8730 341.0760 341.1580
B2-D0 33.6920 33.6980 33.2000 33.2000
B2-J3 137.5010 137.5110 41.6250 41.6430
D0-J3 104.2870 104.2900 44.3310 44.3460
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 59523.3441705969
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.961475
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 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 120.891
HIERARCH ESO ISS PBL12 END 120.847
HIERARCH ESO ISS PBLA12 START 243.1
HIERARCH ESO ISS PBLA12 END 243.1
HIERARCH ESO ISS PBL13 START 93.212
HIERARCH ESO ISS PBL13 END 93.154
HIERARCH ESO ISS PBLA13 START 253.5
HIERARCH ESO ISS PBLA13 END 253.5
HIERARCH ESO ISS PBL14 START 50.894
HIERARCH ESO ISS PBL14 END 50.873
HIERARCH ESO ISS PBLA14 START 341.076
HIERARCH ESO ISS PBLA14 END 341.158
HIERARCH ESO ISS PBL23 START 33.692
HIERARCH ESO ISS PBL23 END 33.698
HIERARCH ESO ISS PBLA23 START 33.2
HIERARCH ESO ISS PBLA23 END 33.2
HIERARCH ESO ISS PBL24 START 137.501
HIERARCH ESO ISS PBL24 END 137.511
HIERARCH ESO ISS PBLA24 START 41.625
HIERARCH ESO ISS PBLA24 END 41.643
HIERARCH ESO ISS PBL34 START 104.287
HIERARCH ESO ISS PBL34 END 104.29
HIERARCH ESO ISS PBLA34 START 44.331
HIERARCH ESO ISS PBLA34 END 44.346
HIERARCH ESO ISS AMBI TAU0 START 0.003054
HIERARCH ESO ISS AMBI TAU0 END 0.003054
HIERARCH ESO ISS AMBI TEMP 9.92
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 1.01