Exposure
ID
PIONI.2021-11-02T06:06:14.412_1
Header ID
PIONI.2021-11-02T06:06:14.412
Date updated
2021-11-02 06:11:59 UTC+0000
Release date
2022-11-02 06:11:59 UTC+0000
UTC Start
2021-11-02 06:06:14.412
UTC End
2021-11-02 06:06:40.012
MJD Start
59520.2543334747
MJD End
59520.254629771
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0026425
Ambient temperature (°C)
11.18
Seeing (arcsec)
1.125
Observation
ID
48710
Category
science
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
36481
Name
eps Eri
RA
53.226764
DEC
-9.45816
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 24.1140 24.1030 145.1000 145.1000
A0-D0 31.9280 31.9230 73.2000 73.2000
A0-C1 21.8590 21.8450 117.5530 117.5960
B2-D0 33.4940 33.5010 30.0000 30.1000
B2-C1 11.1570 11.1590 29.9930 30.0390
D0-C1 22.3370 22.3420 210.0550 210.1000
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59520.2543334747
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226764
DEC -9.45816
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 24.114
HIERARCH ESO ISS PBL12 END 24.103
HIERARCH ESO ISS PBLA12 START 145.1
HIERARCH ESO ISS PBLA12 END 145.1
HIERARCH ESO ISS PBL13 START 31.928
HIERARCH ESO ISS PBL13 END 31.923
HIERARCH ESO ISS PBLA13 START 73.2
HIERARCH ESO ISS PBLA13 END 73.2
HIERARCH ESO ISS PBL14 START 21.859
HIERARCH ESO ISS PBL14 END 21.845
HIERARCH ESO ISS PBLA14 START 117.553
HIERARCH ESO ISS PBLA14 END 117.596
HIERARCH ESO ISS PBL23 START 33.494
HIERARCH ESO ISS PBL23 END 33.501
HIERARCH ESO ISS PBLA23 START 30.0
HIERARCH ESO ISS PBLA23 END 30.1
HIERARCH ESO ISS PBL24 START 11.157
HIERARCH ESO ISS PBL24 END 11.159
HIERARCH ESO ISS PBLA24 START 29.993
HIERARCH ESO ISS PBLA24 END 30.039
HIERARCH ESO ISS PBL34 START 22.337
HIERARCH ESO ISS PBL34 END 22.342
HIERARCH ESO ISS PBLA34 START 210.055
HIERARCH ESO ISS PBLA34 END 210.1
HIERARCH ESO ISS AMBI TAU0 START 0.002559
HIERARCH ESO ISS AMBI TAU0 END 0.002726
HIERARCH ESO ISS AMBI TEMP 11.18
HIERARCH ESO ISS AMBI FWHM START 1.13
HIERARCH ESO ISS AMBI FWHM END 1.12