Exposure
ID
PIONI.2021-11-11T06:19:01.168_1
Header ID
PIONI.2021-11-11T06:19:01.168
Date updated
2021-11-11 06:25:42 UTC+0000
Release date
2022-11-11 06:25:42 UTC+0000
UTC Start
2021-11-11 06:19:01.168
UTC End
2021-11-11 06:19:26.768
MJD Start
59529.2632079609
MJD End
59529.2635042572
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003693
Ambient temperature (°C)
10.62
Seeing (arcsec)
0.6
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 81.8270 81.7420 121.7000 121.7000
A0-J2 119.9490 119.8250 96.6000 96.6000
A0-J3 131.7960 131.7690 51.1820 51.1980
G1-J2 57.4610 57.4400 59.5000 59.5000
G1-J3 129.8640 129.8810 14.7410 14.7950
J2-J3 97.8280 97.8120 350.3070 350.3850
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 59529.2632079609
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 81.827
HIERARCH ESO ISS PBL12 END 81.742
HIERARCH ESO ISS PBLA12 START 121.7
HIERARCH ESO ISS PBLA12 END 121.7
HIERARCH ESO ISS PBL13 START 119.949
HIERARCH ESO ISS PBL13 END 119.825
HIERARCH ESO ISS PBLA13 START 96.6
HIERARCH ESO ISS PBLA13 END 96.6
HIERARCH ESO ISS PBL14 START 131.796
HIERARCH ESO ISS PBL14 END 131.769
HIERARCH ESO ISS PBLA14 START 51.182
HIERARCH ESO ISS PBLA14 END 51.198
HIERARCH ESO ISS PBL23 START 57.461
HIERARCH ESO ISS PBL23 END 57.44
HIERARCH ESO ISS PBLA23 START 59.5
HIERARCH ESO ISS PBLA23 END 59.5
HIERARCH ESO ISS PBL24 START 129.864
HIERARCH ESO ISS PBL24 END 129.881
HIERARCH ESO ISS PBLA24 START 14.741
HIERARCH ESO ISS PBLA24 END 14.795
HIERARCH ESO ISS PBL34 START 97.828
HIERARCH ESO ISS PBL34 END 97.812
HIERARCH ESO ISS PBLA34 START 350.307
HIERARCH ESO ISS PBLA34 END 350.385
HIERARCH ESO ISS AMBI TAU0 START 0.003693
HIERARCH ESO ISS AMBI TAU0 END 0.003693
HIERARCH ESO ISS AMBI TEMP 10.62
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.61