Exposure
ID
PIONI.2021-11-11T06:03:05.967_1
Header ID
PIONI.2021-11-11T06:03:05.967
Date updated
2021-11-11 06:11:15 UTC+0000
Release date
2022-11-11 06:11:15 UTC+0000
UTC Start
2021-11-11 06:03:05.967
UTC End
2021-11-11 06:03:31.567
MJD Start
59529.2521523992
MJD End
59529.2524486955
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004289
Ambient temperature (°C)
11.11
Seeing (arcsec)
0.58
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 83.9640 83.8880 120.1000 120.2000
A0-J2 122.9520 122.8490 95.8000 95.8000
A0-J3 132.2930 132.2810 50.7060 50.7260
G1-J2 57.9170 57.9040 59.1000 59.1000
G1-J3 129.4160 129.4330 13.2970 13.3530
J2-J3 98.2700 98.2520 348.2900 348.3650
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 59529.2521523992
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 83.964
HIERARCH ESO ISS PBL12 END 83.888
HIERARCH ESO ISS PBLA12 START 120.1
HIERARCH ESO ISS PBLA12 END 120.2
HIERARCH ESO ISS PBL13 START 122.952
HIERARCH ESO ISS PBL13 END 122.849
HIERARCH ESO ISS PBLA13 START 95.8
HIERARCH ESO ISS PBLA13 END 95.8
HIERARCH ESO ISS PBL14 START 132.293
HIERARCH ESO ISS PBL14 END 132.281
HIERARCH ESO ISS PBLA14 START 50.706
HIERARCH ESO ISS PBLA14 END 50.726
HIERARCH ESO ISS PBL23 START 57.917
HIERARCH ESO ISS PBL23 END 57.904
HIERARCH ESO ISS PBLA23 START 59.1
HIERARCH ESO ISS PBLA23 END 59.1
HIERARCH ESO ISS PBL24 START 129.416
HIERARCH ESO ISS PBL24 END 129.433
HIERARCH ESO ISS PBLA24 START 13.297
HIERARCH ESO ISS PBLA24 END 13.353
HIERARCH ESO ISS PBL34 START 98.27
HIERARCH ESO ISS PBL34 END 98.252
HIERARCH ESO ISS PBLA34 START 348.29
HIERARCH ESO ISS PBLA34 END 348.365
HIERARCH ESO ISS AMBI TAU0 START 0.004289
HIERARCH ESO ISS AMBI TAU0 END 0.004289
HIERARCH ESO ISS AMBI TEMP 11.11
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.58