Exposure
ID
PIONI.2021-11-02T06:33:16.795_1
Header ID
PIONI.2021-11-02T06:33:16.795
Date updated
2021-11-02 06:41:03 UTC+0000
Release date
2022-11-02 06:41:03 UTC+0000
UTC Start
2021-11-02 06:33:16.795
UTC End
2021-11-02 06:33:42.395
MJD Start
59520.27311105
MJD End
59520.2734073463
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002414
Ambient temperature (°C)
10.68
Seeing (arcsec)
1.14
Observation
ID
48710
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
36481
Name
eps Eri
RA
53.226764
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 23.5730 23.5610 148.2000 148.2000
A0-D0 31.4820 31.4680 74.1000 74.1000
A0-C1 21.1470 21.1290 119.6930 119.7460
B2-D0 33.7610 33.7650 31.9000 31.9000
B2-C1 11.2460 11.2470 31.8590 31.8960
D0-C1 22.5150 22.5180 211.9180 211.9550
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 59520.27311105
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226764
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 23.573
HIERARCH ESO ISS PBL12 END 23.561
HIERARCH ESO ISS PBLA12 START 148.2
HIERARCH ESO ISS PBLA12 END 148.2
HIERARCH ESO ISS PBL13 START 31.482
HIERARCH ESO ISS PBL13 END 31.468
HIERARCH ESO ISS PBLA13 START 74.1
HIERARCH ESO ISS PBLA13 END 74.1
HIERARCH ESO ISS PBL14 START 21.147
HIERARCH ESO ISS PBL14 END 21.129
HIERARCH ESO ISS PBLA14 START 119.693
HIERARCH ESO ISS PBLA14 END 119.746
HIERARCH ESO ISS PBL23 START 33.761
HIERARCH ESO ISS PBL23 END 33.765
HIERARCH ESO ISS PBLA23 START 31.9
HIERARCH ESO ISS PBLA23 END 31.9
HIERARCH ESO ISS PBL24 START 11.246
HIERARCH ESO ISS PBL24 END 11.247
HIERARCH ESO ISS PBLA24 START 31.859
HIERARCH ESO ISS PBLA24 END 31.896
HIERARCH ESO ISS PBL34 START 22.515
HIERARCH ESO ISS PBL34 END 22.518
HIERARCH ESO ISS PBLA34 START 211.918
HIERARCH ESO ISS PBLA34 END 211.955
HIERARCH ESO ISS AMBI TAU0 START 0.002414
HIERARCH ESO ISS AMBI TAU0 END 0.002414
HIERARCH ESO ISS AMBI TEMP 10.68
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 1.14