Exposure
ID
PIONI.2021-11-02T04:29:12.208_1
Header ID
PIONI.2021-11-02T04:29:12.208
Date updated
2021-11-02 04:36:24 UTC+0000
Release date
2021-11-02 04:29:12 UTC+0000
UTC Start
2021-11-02 04:29:12.208
UTC End
2021-11-02 04:29:37.808
MJD Start
59520.1869468545
MJD End
59520.1872431508
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003615
Ambient temperature (°C)
11.28
Seeing (arcsec)
0.95
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 24.8650 24.8740 136.1000 136.1000
A0-D0 23.8260 23.8750 61.4000 61.5000
A0-C1 20.1820 20.2060 113.8370 113.8200
B2-D0 29.5390 29.5440 7.2000 7.3000
B2-C1 9.8420 9.8440 7.1300 7.2280
D0-C1 19.6970 19.7000 187.1920 187.2890
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 59520.1869468545
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 24.865
HIERARCH ESO ISS PBL12 END 24.874
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 23.826
HIERARCH ESO ISS PBL13 END 23.875
HIERARCH ESO ISS PBLA13 START 61.4
HIERARCH ESO ISS PBLA13 END 61.5
HIERARCH ESO ISS PBL14 START 20.182
HIERARCH ESO ISS PBL14 END 20.206
HIERARCH ESO ISS PBLA14 START 113.837
HIERARCH ESO ISS PBLA14 END 113.82
HIERARCH ESO ISS PBL23 START 29.539
HIERARCH ESO ISS PBL23 END 29.544
HIERARCH ESO ISS PBLA23 START 7.2
HIERARCH ESO ISS PBLA23 END 7.3
HIERARCH ESO ISS PBL24 START 9.842
HIERARCH ESO ISS PBL24 END 9.844
HIERARCH ESO ISS PBLA24 START 7.13
HIERARCH ESO ISS PBLA24 END 7.228
HIERARCH ESO ISS PBL34 START 19.697
HIERARCH ESO ISS PBL34 END 19.7
HIERARCH ESO ISS PBLA34 START 187.192
HIERARCH ESO ISS PBLA34 END 187.289
HIERARCH ESO ISS AMBI TAU0 START 0.003946
HIERARCH ESO ISS AMBI TAU0 END 0.003284
HIERARCH ESO ISS AMBI TEMP 11.28
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 1.01