Exposure
ID
PIONI.2021-11-12T05:12:02.491_1
Header ID
PIONI.2021-11-12T05:12:02.491
Date updated
2021-11-12 05:20:54 UTC+0000
Release date
2022-11-12 05:20:54 UTC+0000
UTC Start
2021-11-12 05:12:02.491
UTC End
2021-11-12 05:12:28.091
MJD Start
59530.2166955015
MJD End
59530.2169917978
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0034775
Ambient temperature (°C)
13.45
Seeing (arcsec)
0.6
Observation
ID
48855
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
36582
Name
eps Eri
RA
53.227319
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 88.6410 88.5990 116.5000 116.6000
A0-J2 128.4480 128.4120 93.7000 93.7000
A0-J3 131.6020 131.6300 48.5200 48.5480
G1-J2 58.0880 58.0970 57.3000 57.3000
G1-J3 128.2310 128.2440 8.6510 8.7050
J2-J3 99.8750 99.8540 342.7640 342.8220
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 59530.2166955015
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227319
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 88.641
HIERARCH ESO ISS PBL12 END 88.599
HIERARCH ESO ISS PBLA12 START 116.5
HIERARCH ESO ISS PBLA12 END 116.6
HIERARCH ESO ISS PBL13 START 128.448
HIERARCH ESO ISS PBL13 END 128.412
HIERARCH ESO ISS PBLA13 START 93.7
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 131.602
HIERARCH ESO ISS PBL14 END 131.63
HIERARCH ESO ISS PBLA14 START 48.52
HIERARCH ESO ISS PBLA14 END 48.548
HIERARCH ESO ISS PBL23 START 58.088
HIERARCH ESO ISS PBL23 END 58.097
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.3
HIERARCH ESO ISS PBL24 START 128.231
HIERARCH ESO ISS PBL24 END 128.244
HIERARCH ESO ISS PBLA24 START 8.651
HIERARCH ESO ISS PBLA24 END 8.705
HIERARCH ESO ISS PBL34 START 99.875
HIERARCH ESO ISS PBL34 END 99.854
HIERARCH ESO ISS PBLA34 START 342.764
HIERARCH ESO ISS PBLA34 END 342.822
HIERARCH ESO ISS AMBI TAU0 START 0.003703
HIERARCH ESO ISS AMBI TAU0 END 0.003252
HIERARCH ESO ISS AMBI TEMP 13.45
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6