Exposure
ID
PIONI.2021-11-09T06:26:04.955_1
Header ID
PIONI.2021-11-09T06:26:04.955
Date updated
2021-11-09 06:30:38 UTC+0000
Release date
2022-11-09 06:30:38 UTC+0000
UTC Start
2021-11-09 06:26:04.955
UTC End
2021-11-09 06:26:30.555
MJD Start
59527.26811291
MJD End
59527.2684092063
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0037035
Ambient temperature (°C)
11.79
Seeing (arcsec)
0.74
Observation
ID
48833
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
36571
Name
eps Eri
RA
53.227321
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 81.9400 81.8550 121.6000 121.7000
A0-J2 120.1120 119.9890 96.6000 96.6000
A0-J3 131.8290 131.8040 51.1640 51.1800
G1-J2 57.4880 57.4680 59.5000 59.5000
G1-J3 129.8410 129.8580 14.6730 14.7270
J2-J3 97.8480 97.8330 350.2080 350.2850
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 59527.26811291
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227321
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 G1
HIERARCH ESO ISS CONF STATION3 J2
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 81.94
HIERARCH ESO ISS PBL12 END 81.855
HIERARCH ESO ISS PBLA12 START 121.6
HIERARCH ESO ISS PBLA12 END 121.7
HIERARCH ESO ISS PBL13 START 120.112
HIERARCH ESO ISS PBL13 END 119.989
HIERARCH ESO ISS PBLA13 START 96.6
HIERARCH ESO ISS PBLA13 END 96.6
HIERARCH ESO ISS PBL14 START 131.829
HIERARCH ESO ISS PBL14 END 131.804
HIERARCH ESO ISS PBLA14 START 51.164
HIERARCH ESO ISS PBLA14 END 51.18
HIERARCH ESO ISS PBL23 START 57.488
HIERARCH ESO ISS PBL23 END 57.468
HIERARCH ESO ISS PBLA23 START 59.5
HIERARCH ESO ISS PBLA23 END 59.5
HIERARCH ESO ISS PBL24 START 129.841
HIERARCH ESO ISS PBL24 END 129.858
HIERARCH ESO ISS PBLA24 START 14.673
HIERARCH ESO ISS PBLA24 END 14.727
HIERARCH ESO ISS PBL34 START 97.848
HIERARCH ESO ISS PBL34 END 97.833
HIERARCH ESO ISS PBLA34 START 350.208
HIERARCH ESO ISS PBLA34 END 350.285
HIERARCH ESO ISS AMBI TAU0 START 0.003823
HIERARCH ESO ISS AMBI TAU0 END 0.003584
HIERARCH ESO ISS AMBI TEMP 11.79
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.74