Exposure
ID
PIONI.2021-11-11T05:11:03.049_1
Header ID
PIONI.2021-11-11T05:11:03.049
Date updated
2021-11-11 05:15:59 UTC+0000
Release date
2022-11-11 05:15:58 UTC+0000
UTC Start
2021-11-11 05:11:03.049
UTC End
2021-11-11 05:11:28.649
MJD Start
59529.2160075144
MJD End
59529.2163038107
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003318
Ambient temperature (°C)
11.18
Seeing (arcsec)
0.87
Observation
ID
48840
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
36577
Name
eps Eri
RA
53.22732
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 88.9740 88.9350 116.2000 116.3000
A0-J2 128.7220 128.6920 93.5000 93.5000
A0-J3 131.3520 131.3840 48.2170 48.2540
G1-J2 58.0070 58.0180 57.0000 57.1000
G1-J3 128.1280 128.1400 8.1330 8.1960
J2-J3 100.0590 100.0360 342.2250 342.2900
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 59529.2160075144
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.22732
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 88.974
HIERARCH ESO ISS PBL12 END 88.935
HIERARCH ESO ISS PBLA12 START 116.2
HIERARCH ESO ISS PBLA12 END 116.3
HIERARCH ESO ISS PBL13 START 128.722
HIERARCH ESO ISS PBL13 END 128.692
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.5
HIERARCH ESO ISS PBL14 START 131.352
HIERARCH ESO ISS PBL14 END 131.384
HIERARCH ESO ISS PBLA14 START 48.217
HIERARCH ESO ISS PBLA14 END 48.254
HIERARCH ESO ISS PBL23 START 58.007
HIERARCH ESO ISS PBL23 END 58.018
HIERARCH ESO ISS PBLA23 START 57.0
HIERARCH ESO ISS PBLA23 END 57.1
HIERARCH ESO ISS PBL24 START 128.128
HIERARCH ESO ISS PBL24 END 128.14
HIERARCH ESO ISS PBLA24 START 8.133
HIERARCH ESO ISS PBLA24 END 8.196
HIERARCH ESO ISS PBL34 START 100.059
HIERARCH ESO ISS PBL34 END 100.036
HIERARCH ESO ISS PBLA34 START 342.225
HIERARCH ESO ISS PBLA34 END 342.29
HIERARCH ESO ISS AMBI TAU0 START 0.003318
HIERARCH ESO ISS AMBI TAU0 END 0.003318
HIERARCH ESO ISS AMBI TEMP 11.18
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.87