Exposure
ID
PIONI.2021-11-09T06:07:36.151_1
Header ID
PIONI.2021-11-09T06:07:36.151
Date updated
2021-11-09 06:15:39 UTC+0000
Release date
2022-11-09 06:15:39 UTC+0000
UTC Start
2021-11-09 06:07:36.150
UTC End
2021-11-09 06:08:01.750
MJD Start
59527.2552795196
MJD End
59527.2555758159
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003463
Ambient temperature (°C)
11.79
Seeing (arcsec)
0.75
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 84.3810 84.3080 119.8000 119.9000
A0-J2 123.5140 123.4150 95.6000 95.7000
A0-J3 132.3500 132.3410 50.5920 50.6130
G1-J2 57.9880 57.9760 59.0000 59.1000
G1-J3 129.3230 129.3400 12.9870 13.0430
J2-J3 98.3710 98.3530 347.8760 347.9500
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 59527.2552795196
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 84.381
HIERARCH ESO ISS PBL12 END 84.308
HIERARCH ESO ISS PBLA12 START 119.8
HIERARCH ESO ISS PBLA12 END 119.9
HIERARCH ESO ISS PBL13 START 123.514
HIERARCH ESO ISS PBL13 END 123.415
HIERARCH ESO ISS PBLA13 START 95.6
HIERARCH ESO ISS PBLA13 END 95.7
HIERARCH ESO ISS PBL14 START 132.35
HIERARCH ESO ISS PBL14 END 132.341
HIERARCH ESO ISS PBLA14 START 50.592
HIERARCH ESO ISS PBLA14 END 50.613
HIERARCH ESO ISS PBL23 START 57.988
HIERARCH ESO ISS PBL23 END 57.976
HIERARCH ESO ISS PBLA23 START 59.0
HIERARCH ESO ISS PBLA23 END 59.1
HIERARCH ESO ISS PBL24 START 129.323
HIERARCH ESO ISS PBL24 END 129.34
HIERARCH ESO ISS PBLA24 START 12.987
HIERARCH ESO ISS PBLA24 END 13.043
HIERARCH ESO ISS PBL34 START 98.371
HIERARCH ESO ISS PBL34 END 98.353
HIERARCH ESO ISS PBLA34 START 347.876
HIERARCH ESO ISS PBLA34 END 347.95
HIERARCH ESO ISS AMBI TAU0 START 0.003463
HIERARCH ESO ISS AMBI TAU0 END 0.003463
HIERARCH ESO ISS AMBI TEMP 11.79
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.75