Exposure
ID
PIONI.2021-11-10T05:27:13.932_1
Header ID
PIONI.2021-11-10T05:27:13.932
Date updated
2021-11-10 05:30:51 UTC+0000
Release date
2022-11-10 05:30:51 UTC+0000
UTC Start
2021-11-10 05:27:13.932
UTC End
2021-11-10 05:27:39.532
MJD Start
59528.2272445802
MJD End
59528.2275408765
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002978
Ambient temperature (°C)
9.54
Seeing (arcsec)
0.62
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 88.0900 88.0410 117.0000 117.1000
A0-J2 127.9350 127.8870 94.0000 94.0000
A0-J3 131.9140 131.9360 48.9340 48.9670
G1-J2 58.1750 58.1810 57.7000 57.7000
G1-J3 128.3930 128.4070 9.4020 9.4630
J2-J3 99.6060 99.5840 343.5700 343.6370
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 59528.2272445802
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 88.09
HIERARCH ESO ISS PBL12 END 88.041
HIERARCH ESO ISS PBLA12 START 117.0
HIERARCH ESO ISS PBLA12 END 117.1
HIERARCH ESO ISS PBL13 START 127.935
HIERARCH ESO ISS PBL13 END 127.887
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 131.914
HIERARCH ESO ISS PBL14 END 131.936
HIERARCH ESO ISS PBLA14 START 48.934
HIERARCH ESO ISS PBLA14 END 48.967
HIERARCH ESO ISS PBL23 START 58.175
HIERARCH ESO ISS PBL23 END 58.181
HIERARCH ESO ISS PBLA23 START 57.7
HIERARCH ESO ISS PBLA23 END 57.7
HIERARCH ESO ISS PBL24 START 128.393
HIERARCH ESO ISS PBL24 END 128.407
HIERARCH ESO ISS PBLA24 START 9.402
HIERARCH ESO ISS PBLA24 END 9.463
HIERARCH ESO ISS PBL34 START 99.606
HIERARCH ESO ISS PBL34 END 99.584
HIERARCH ESO ISS PBLA34 START 343.57
HIERARCH ESO ISS PBLA34 END 343.637
HIERARCH ESO ISS AMBI TAU0 START 0.002716
HIERARCH ESO ISS AMBI TAU0 END 0.00324
HIERARCH ESO ISS AMBI TEMP 9.54
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.6