Exposure
ID
PIONI.2021-11-09T05:07:49.170_1
Header ID
PIONI.2021-11-09T05:07:49.170
Date updated
2021-11-09 05:15:53 UTC+0000
Release date
2022-11-09 05:15:53 UTC+0000
UTC Start
2021-11-09 05:07:49.170
UTC End
2021-11-09 05:08:14.770
MJD Start
59527.2137635383
MJD End
59527.2140598346
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00502
Ambient temperature (°C)
12.01
Seeing (arcsec)
0.49
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 89.6060 89.5760 115.6000 115.6000
A0-J2 129.1250 129.1110 93.0000 93.0000
A0-J3 130.6730 130.7130 47.5010 47.5420
G1-J2 57.7570 57.7730 56.4000 56.5000
G1-J3 127.9160 127.9260 6.9680 7.0320
J2-J3 100.4740 100.4520 341.0630 341.1250
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 59527.2137635383
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 89.606
HIERARCH ESO ISS PBL12 END 89.576
HIERARCH ESO ISS PBLA12 START 115.6
HIERARCH ESO ISS PBLA12 END 115.6
HIERARCH ESO ISS PBL13 START 129.125
HIERARCH ESO ISS PBL13 END 129.111
HIERARCH ESO ISS PBLA13 START 93.0
HIERARCH ESO ISS PBLA13 END 93.0
HIERARCH ESO ISS PBL14 START 130.673
HIERARCH ESO ISS PBL14 END 130.713
HIERARCH ESO ISS PBLA14 START 47.501
HIERARCH ESO ISS PBLA14 END 47.542
HIERARCH ESO ISS PBL23 START 57.757
HIERARCH ESO ISS PBL23 END 57.773
HIERARCH ESO ISS PBLA23 START 56.4
HIERARCH ESO ISS PBLA23 END 56.5
HIERARCH ESO ISS PBL24 START 127.916
HIERARCH ESO ISS PBL24 END 127.926
HIERARCH ESO ISS PBLA24 START 6.968
HIERARCH ESO ISS PBLA24 END 7.032
HIERARCH ESO ISS PBL34 START 100.474
HIERARCH ESO ISS PBL34 END 100.452
HIERARCH ESO ISS PBLA34 START 341.063
HIERARCH ESO ISS PBLA34 END 341.125
HIERARCH ESO ISS AMBI TAU0 START 0.00502
HIERARCH ESO ISS AMBI TAU0 END 0.00502
HIERARCH ESO ISS AMBI TEMP 12.01
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.49