Exposure
ID
PIONI.2021-11-02T04:31:06.589_1
Header ID
PIONI.2021-11-02T04:31:06.589
Date updated
2021-11-02 04:41:13 UTC+0000
Release date
2021-11-02 04:31:06 UTC+0000
UTC Start
2021-11-02 04:31:06.589
UTC End
2021-11-02 04:31:32.189
MJD Start
59520.1882707067
MJD End
59520.188567003
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003174
Ambient temperature (°C)
11.29
Seeing (arcsec)
0.93
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 24.8920 24.9000 136.1000 136.1000
A0-D0 23.9820 24.0310 61.7000 61.8000
A0-C1 20.2590 20.2830 113.7830 113.7660
B2-D0 29.5570 29.5620 7.5000 7.6000
B2-C1 9.8480 9.8500 7.4410 7.5370
D0-C1 19.7090 19.7130 187.5030 187.6000
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 59520.1882707067
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 24.892
HIERARCH ESO ISS PBL12 END 24.9
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 23.982
HIERARCH ESO ISS PBL13 END 24.031
HIERARCH ESO ISS PBLA13 START 61.7
HIERARCH ESO ISS PBLA13 END 61.8
HIERARCH ESO ISS PBL14 START 20.259
HIERARCH ESO ISS PBL14 END 20.283
HIERARCH ESO ISS PBLA14 START 113.783
HIERARCH ESO ISS PBLA14 END 113.766
HIERARCH ESO ISS PBL23 START 29.557
HIERARCH ESO ISS PBL23 END 29.562
HIERARCH ESO ISS PBLA23 START 7.5
HIERARCH ESO ISS PBLA23 END 7.6
HIERARCH ESO ISS PBL24 START 9.848
HIERARCH ESO ISS PBL24 END 9.85
HIERARCH ESO ISS PBLA24 START 7.441
HIERARCH ESO ISS PBLA24 END 7.537
HIERARCH ESO ISS PBL34 START 19.709
HIERARCH ESO ISS PBL34 END 19.713
HIERARCH ESO ISS PBLA34 START 187.503
HIERARCH ESO ISS PBLA34 END 187.6
HIERARCH ESO ISS AMBI TAU0 START 0.00298
HIERARCH ESO ISS AMBI TAU0 END 0.003368
HIERARCH ESO ISS AMBI TEMP 11.29
HIERARCH ESO ISS AMBI FWHM START 0.96
HIERARCH ESO ISS AMBI FWHM END 0.9