Exposure
ID
PIONI.2021-11-05T08:01:51.196_1
Header ID
PIONI.2021-11-05T08:01:51.196
Date updated
2021-11-05 08:10:35 UTC+0000
Release date
2022-11-05 08:10:35 UTC+0000
UTC Start
2021-11-05 08:01:51.195
UTC End
2021-11-05 08:02:16.795
MJD Start
59523.334620316
MJD End
59523.3349166123
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003234
Ambient temperature (°C)
10.04
Seeing (arcsec)
1.27
Observation
ID
48754
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
36515
Name
eps Eri
RA
53.227323
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 107.2180 107.0800 243.9000 243.9000
K0-D0 79.2570 79.1210 255.5000 255.5000
K0-J3 50.8070 50.8000 353.8020 353.8990
B2-D0 33.5920 33.5840 35.6000 35.6000
B2-J3 133.3400 133.2790 42.9410 42.9370
D0-J3 100.1110 100.0570 45.3850 45.3790
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 59523.334620316
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227323
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 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
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 107.218
HIERARCH ESO ISS PBL12 END 107.08
HIERARCH ESO ISS PBLA12 START 243.9
HIERARCH ESO ISS PBLA12 END 243.9
HIERARCH ESO ISS PBL13 START 79.257
HIERARCH ESO ISS PBL13 END 79.121
HIERARCH ESO ISS PBLA13 START 255.5
HIERARCH ESO ISS PBLA13 END 255.5
HIERARCH ESO ISS PBL14 START 50.807
HIERARCH ESO ISS PBL14 END 50.8
HIERARCH ESO ISS PBLA14 START 353.802
HIERARCH ESO ISS PBLA14 END 353.899
HIERARCH ESO ISS PBL23 START 33.592
HIERARCH ESO ISS PBL23 END 33.584
HIERARCH ESO ISS PBLA23 START 35.6
HIERARCH ESO ISS PBLA23 END 35.6
HIERARCH ESO ISS PBL24 START 133.34
HIERARCH ESO ISS PBL24 END 133.279
HIERARCH ESO ISS PBLA24 START 42.941
HIERARCH ESO ISS PBLA24 END 42.937
HIERARCH ESO ISS PBL34 START 100.111
HIERARCH ESO ISS PBL34 END 100.057
HIERARCH ESO ISS PBLA34 START 45.385
HIERARCH ESO ISS PBLA34 END 45.379
HIERARCH ESO ISS AMBI TAU0 START 0.003234
HIERARCH ESO ISS AMBI TAU0 END 0.003234
HIERARCH ESO ISS AMBI TEMP 10.04
HIERARCH ESO ISS AMBI FWHM START 1.27
HIERARCH ESO ISS AMBI FWHM END 1.27