Exposure
ID
PIONI.2021-10-29T03:58:28.752_1
Header ID
PIONI.2021-10-29T03:58:28.752
Date updated
2021-10-29 04:06:24 UTC+0000
Release date
2022-10-29 04:06:24 UTC+0000
UTC Start
2021-10-29 03:58:28.752
UTC End
2021-10-29 03:58:54.352
MJD Start
59516.1656105518
MJD End
59516.1659068481
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004838
Ambient temperature (°C)
13.44
Seeing (arcsec)
0.475
Observation
ID
48669
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
36449
Name
eps Eri
RA
53.226765
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.1880 25.1920 136.0000 136.0000
A0-D0 27.9250 27.9610 64.2000 64.2000
A0-C1 21.5820 21.5980 111.8330 111.8410
B2-D0 31.2350 31.2440 14.1000 14.2000
B2-C1 10.4060 10.4090 14.1020 14.1880
D0-C1 20.8290 20.8350 194.1670 194.2520
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 59516.1656105518
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226765
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.188
HIERARCH ESO ISS PBL12 END 25.192
HIERARCH ESO ISS PBLA12 START 136.0
HIERARCH ESO ISS PBLA12 END 136.0
HIERARCH ESO ISS PBL13 START 27.925
HIERARCH ESO ISS PBL13 END 27.961
HIERARCH ESO ISS PBLA13 START 64.2
HIERARCH ESO ISS PBLA13 END 64.2
HIERARCH ESO ISS PBL14 START 21.582
HIERARCH ESO ISS PBL14 END 21.598
HIERARCH ESO ISS PBLA14 START 111.833
HIERARCH ESO ISS PBLA14 END 111.841
HIERARCH ESO ISS PBL23 START 31.235
HIERARCH ESO ISS PBL23 END 31.244
HIERARCH ESO ISS PBLA23 START 14.1
HIERARCH ESO ISS PBLA23 END 14.2
HIERARCH ESO ISS PBL24 START 10.406
HIERARCH ESO ISS PBL24 END 10.409
HIERARCH ESO ISS PBLA24 START 14.102
HIERARCH ESO ISS PBLA24 END 14.188
HIERARCH ESO ISS PBL34 START 20.829
HIERARCH ESO ISS PBL34 END 20.835
HIERARCH ESO ISS PBLA34 START 194.167
HIERARCH ESO ISS PBLA34 END 194.252
HIERARCH ESO ISS AMBI TAU0 START 0.004738
HIERARCH ESO ISS AMBI TAU0 END 0.004938
HIERARCH ESO ISS AMBI TEMP 13.44
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.47