Exposure
ID
PIONI.2021-11-08T06:07:29.384_1
Header ID
PIONI.2021-11-08T06:07:29.384
Date updated
2021-11-08 06:16:44 UTC+0000
Release date
2022-11-08 06:16:44 UTC+0000
UTC Start
2021-11-08 06:07:29.384
UTC End
2021-11-08 06:07:54.984
MJD Start
59526.2552012047
MJD End
59526.255497501
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005503
Ambient temperature (°C)
12.75
Seeing (arcsec)
0.62
Observation
ID
48812
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
36560
Name
eps Eri
RA
53.227322
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 84.8680 84.7970 119.5000 119.5000
A0-J2 124.1560 124.0630 95.5000 95.5000
A0-J3 132.3960 132.3910 50.4410 50.4640
G1-J2 58.0600 58.0500 58.9000 58.9000
G1-J3 129.2120 129.2290 12.6030 12.6600
J2-J3 98.4970 98.4780 347.3760 347.4500
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 59526.2552012047
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227322
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 84.868
HIERARCH ESO ISS PBL12 END 84.797
HIERARCH ESO ISS PBLA12 START 119.5
HIERARCH ESO ISS PBLA12 END 119.5
HIERARCH ESO ISS PBL13 START 124.156
HIERARCH ESO ISS PBL13 END 124.063
HIERARCH ESO ISS PBLA13 START 95.5
HIERARCH ESO ISS PBLA13 END 95.5
HIERARCH ESO ISS PBL14 START 132.396
HIERARCH ESO ISS PBL14 END 132.391
HIERARCH ESO ISS PBLA14 START 50.441
HIERARCH ESO ISS PBLA14 END 50.464
HIERARCH ESO ISS PBL23 START 58.06
HIERARCH ESO ISS PBL23 END 58.05
HIERARCH ESO ISS PBLA23 START 58.9
HIERARCH ESO ISS PBLA23 END 58.9
HIERARCH ESO ISS PBL24 START 129.212
HIERARCH ESO ISS PBL24 END 129.229
HIERARCH ESO ISS PBLA24 START 12.603
HIERARCH ESO ISS PBLA24 END 12.66
HIERARCH ESO ISS PBL34 START 98.497
HIERARCH ESO ISS PBL34 END 98.478
HIERARCH ESO ISS PBLA34 START 347.376
HIERARCH ESO ISS PBLA34 END 347.45
HIERARCH ESO ISS AMBI TAU0 START 0.005503
HIERARCH ESO ISS AMBI TAU0 END 0.005503
HIERARCH ESO ISS AMBI TEMP 12.75
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.62