Exposure
ID
PIONI.2021-11-02T06:26:09.669_1
Header ID
PIONI.2021-11-02T06:26:09.669
Date updated
2021-11-02 06:31:36 UTC+0000
Release date
2021-11-02 06:26:09 UTC+0000
UTC Start
2021-11-02 06:26:09.670
UTC End
2021-11-02 06:26:35.270
MJD Start
59520.2681674729
MJD End
59520.2684637692
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002458
Ambient temperature (°C)
10.89
Seeing (arcsec)
1.235
Observation
ID
48711
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
36482
Name
10 Tau
RA
54.215025
DEC
0.39725
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 22.3490 22.3310 144.4000 144.4000
A0-D0 31.8890 31.8820 72.7000 72.7000
A0-C1 20.8390 20.8180 115.4460 115.4720
B2-D0 32.6800 32.6930 32.2000 32.3000
B2-C1 10.8850 10.8890 32.1850 32.2190
D0-C1 21.7950 21.8030 212.2450 212.2790
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 59520.2681674729
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 10 Tau
RA 54.215025
DEC 0.39725
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 22.349
HIERARCH ESO ISS PBL12 END 22.331
HIERARCH ESO ISS PBLA12 START 144.4
HIERARCH ESO ISS PBLA12 END 144.4
HIERARCH ESO ISS PBL13 START 31.889
HIERARCH ESO ISS PBL13 END 31.882
HIERARCH ESO ISS PBLA13 START 72.7
HIERARCH ESO ISS PBLA13 END 72.7
HIERARCH ESO ISS PBL14 START 20.839
HIERARCH ESO ISS PBL14 END 20.818
HIERARCH ESO ISS PBLA14 START 115.446
HIERARCH ESO ISS PBLA14 END 115.472
HIERARCH ESO ISS PBL23 START 32.68
HIERARCH ESO ISS PBL23 END 32.693
HIERARCH ESO ISS PBLA23 START 32.2
HIERARCH ESO ISS PBLA23 END 32.3
HIERARCH ESO ISS PBL24 START 10.885
HIERARCH ESO ISS PBL24 END 10.889
HIERARCH ESO ISS PBLA24 START 32.185
HIERARCH ESO ISS PBLA24 END 32.219
HIERARCH ESO ISS PBL34 START 21.795
HIERARCH ESO ISS PBL34 END 21.803
HIERARCH ESO ISS PBLA34 START 212.245
HIERARCH ESO ISS PBLA34 END 212.279
HIERARCH ESO ISS AMBI TAU0 START 0.002138
HIERARCH ESO ISS AMBI TAU0 END 0.002778
HIERARCH ESO ISS AMBI TEMP 10.89
HIERARCH ESO ISS AMBI FWHM START 1.36
HIERARCH ESO ISS AMBI FWHM END 1.11