Exposure
ID
PIONI.2021-11-04T05:38:10.564_1
Header ID
PIONI.2021-11-04T05:38:10.564
Date updated
2021-11-04 05:46:04 UTC+0000
Release date
2022-11-04 05:46:04 UTC+0000
UTC Start
2021-11-04 05:38:10.564
UTC End
2021-11-04 05:38:36.164
MJD Start
59522.2348444927
MJD End
59522.235140789
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.008295
Ambient temperature (°C)
11.06
Seeing (arcsec)
0.355
Observation
ID
48737
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
36501
Name
eps Eri
RA
53.227324
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 122.0700 122.0880 241.5000 241.5000
K0-D0 95.9680 95.9710 252.4000 252.4000
K0-J3 54.5110 54.4940 333.7690 333.8300
B2-D0 33.2310 33.2400 28.4000 28.5000
B2-J3 135.6280 135.6650 37.8410 37.8860
D0-J3 102.9900 103.0180 40.8730 40.9150
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 59522.2348444927
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227324
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 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
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 122.07
HIERARCH ESO ISS PBL12 END 122.088
HIERARCH ESO ISS PBLA12 START 241.5
HIERARCH ESO ISS PBLA12 END 241.5
HIERARCH ESO ISS PBL13 START 95.968
HIERARCH ESO ISS PBL13 END 95.971
HIERARCH ESO ISS PBLA13 START 252.4
HIERARCH ESO ISS PBLA13 END 252.4
HIERARCH ESO ISS PBL14 START 54.511
HIERARCH ESO ISS PBL14 END 54.494
HIERARCH ESO ISS PBLA14 START 333.769
HIERARCH ESO ISS PBLA14 END 333.83
HIERARCH ESO ISS PBL23 START 33.231
HIERARCH ESO ISS PBL23 END 33.24
HIERARCH ESO ISS PBLA23 START 28.4
HIERARCH ESO ISS PBLA23 END 28.5
HIERARCH ESO ISS PBL24 START 135.628
HIERARCH ESO ISS PBL24 END 135.665
HIERARCH ESO ISS PBLA24 START 37.841
HIERARCH ESO ISS PBLA24 END 37.886
HIERARCH ESO ISS PBL34 START 102.99
HIERARCH ESO ISS PBL34 END 103.018
HIERARCH ESO ISS PBLA34 START 40.873
HIERARCH ESO ISS PBLA34 END 40.915
HIERARCH ESO ISS AMBI TAU0 START 0.008295
HIERARCH ESO ISS AMBI TAU0 END 0.008295
HIERARCH ESO ISS AMBI TEMP 11.06
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.33