Exposure
ID
PIONI.2021-11-09T05:23:45.311_1
Header ID
PIONI.2021-11-09T05:23:45.311
Date updated
2021-11-09 05:30:50 UTC+0000
Release date
2022-11-09 05:30:49 UTC+0000
UTC Start
2021-11-09 05:23:45.311
UTC End
2021-11-09 05:24:10.911
MJD Start
59527.2248299867
MJD End
59527.225126283
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004557
Ambient temperature (°C)
11.96
Seeing (arcsec)
0.6
Observation
ID
48833
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
36571
Name
eps Eri
RA
53.227321
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 88.6460 88.6050 116.5000 116.6000
A0-J2 128.4530 128.4170 93.7000 93.7000
A0-J3 131.5990 131.6260 48.5170 48.5520
G1-J2 58.0870 58.0960 57.3000 57.3000
G1-J3 128.2300 128.2420 8.6450 8.7060
J2-J3 99.8780 99.8570 342.7580 342.8210
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 59527.2248299867
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227321
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 88.646
HIERARCH ESO ISS PBL12 END 88.605
HIERARCH ESO ISS PBLA12 START 116.5
HIERARCH ESO ISS PBLA12 END 116.6
HIERARCH ESO ISS PBL13 START 128.453
HIERARCH ESO ISS PBL13 END 128.417
HIERARCH ESO ISS PBLA13 START 93.7
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 131.599
HIERARCH ESO ISS PBL14 END 131.626
HIERARCH ESO ISS PBLA14 START 48.517
HIERARCH ESO ISS PBLA14 END 48.552
HIERARCH ESO ISS PBL23 START 58.087
HIERARCH ESO ISS PBL23 END 58.096
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.3
HIERARCH ESO ISS PBL24 START 128.23
HIERARCH ESO ISS PBL24 END 128.242
HIERARCH ESO ISS PBLA24 START 8.645
HIERARCH ESO ISS PBLA24 END 8.706
HIERARCH ESO ISS PBL34 START 99.878
HIERARCH ESO ISS PBL34 END 99.857
HIERARCH ESO ISS PBLA34 START 342.758
HIERARCH ESO ISS PBLA34 END 342.821
HIERARCH ESO ISS AMBI TAU0 START 0.004557
HIERARCH ESO ISS AMBI TAU0 END 0.004557
HIERARCH ESO ISS AMBI TEMP 11.96
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6