Exposure
ID
PIONI.2021-11-10T05:27:52.039_1
Header ID
PIONI.2021-11-10T05:27:52.039
Date updated
2021-11-10 05:36:27 UTC+0000
Release date
2022-11-10 05:36:27 UTC+0000
UTC Start
2021-11-10 05:27:52.039
UTC End
2021-11-10 05:28:17.639
MJD Start
59528.227685641
MJD End
59528.2279819373
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00324
Ambient temperature (°C)
9.61
Seeing (arcsec)
0.6
Observation
ID
48840
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
36577
Name
eps Eri
RA
53.22732
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 88.0390 87.9900 117.1000 117.1000
A0-J2 127.8850 127.8360 94.0000 94.0000
A0-J3 131.9380 131.9600 48.9690 49.0020
G1-J2 58.1810 58.1860 57.7000 57.7000
G1-J3 128.4080 128.4220 9.4670 9.5280
J2-J3 99.5830 99.5610 343.6410 343.7090
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 59528.227685641
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.22732
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 88.039
HIERARCH ESO ISS PBL12 END 87.99
HIERARCH ESO ISS PBLA12 START 117.1
HIERARCH ESO ISS PBLA12 END 117.1
HIERARCH ESO ISS PBL13 START 127.885
HIERARCH ESO ISS PBL13 END 127.836
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 131.938
HIERARCH ESO ISS PBL14 END 131.96
HIERARCH ESO ISS PBLA14 START 48.969
HIERARCH ESO ISS PBLA14 END 49.002
HIERARCH ESO ISS PBL23 START 58.181
HIERARCH ESO ISS PBL23 END 58.186
HIERARCH ESO ISS PBLA23 START 57.7
HIERARCH ESO ISS PBLA23 END 57.7
HIERARCH ESO ISS PBL24 START 128.408
HIERARCH ESO ISS PBL24 END 128.422
HIERARCH ESO ISS PBLA24 START 9.467
HIERARCH ESO ISS PBLA24 END 9.528
HIERARCH ESO ISS PBL34 START 99.583
HIERARCH ESO ISS PBL34 END 99.561
HIERARCH ESO ISS PBLA34 START 343.641
HIERARCH ESO ISS PBLA34 END 343.709
HIERARCH ESO ISS AMBI TAU0 START 0.00324
HIERARCH ESO ISS AMBI TAU0 END 0.00324
HIERARCH ESO ISS AMBI TEMP 9.61
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6