Exposure
ID
PIONI.2021-11-02T06:03:42.126_1
Header ID
PIONI.2021-11-02T06:03:42.126
Date updated
2021-11-02 06:11:59 UTC+0000
Release date
2022-11-02 06:11:59 UTC+0000
UTC Start
2021-11-02 06:03:42.126
UTC End
2021-11-02 06:04:07.726
MJD Start
59520.2525709043
MJD End
59520.2528672006
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002606
Ambient temperature (°C)
11.24
Seeing (arcsec)
0.99
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 24.1620 24.1510 144.8000 144.9000
A0-D0 31.9500 31.9450 73.1000 73.1000
A0-C1 21.9150 21.9020 117.3730 117.4150
B2-D0 33.4630 33.4710 29.8000 29.9000
B2-C1 11.1470 11.1490 29.7980 29.8440
D0-C1 22.3170 22.3210 209.8600 209.9060
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 59520.2525709043
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 24.162
HIERARCH ESO ISS PBL12 END 24.151
HIERARCH ESO ISS PBLA12 START 144.8
HIERARCH ESO ISS PBLA12 END 144.9
HIERARCH ESO ISS PBL13 START 31.95
HIERARCH ESO ISS PBL13 END 31.945
HIERARCH ESO ISS PBLA13 START 73.1
HIERARCH ESO ISS PBLA13 END 73.1
HIERARCH ESO ISS PBL14 START 21.915
HIERARCH ESO ISS PBL14 END 21.902
HIERARCH ESO ISS PBLA14 START 117.373
HIERARCH ESO ISS PBLA14 END 117.415
HIERARCH ESO ISS PBL23 START 33.463
HIERARCH ESO ISS PBL23 END 33.471
HIERARCH ESO ISS PBLA23 START 29.8
HIERARCH ESO ISS PBLA23 END 29.9
HIERARCH ESO ISS PBL24 START 11.147
HIERARCH ESO ISS PBL24 END 11.149
HIERARCH ESO ISS PBLA24 START 29.798
HIERARCH ESO ISS PBLA24 END 29.844
HIERARCH ESO ISS PBL34 START 22.317
HIERARCH ESO ISS PBL34 END 22.321
HIERARCH ESO ISS PBLA34 START 209.86
HIERARCH ESO ISS PBLA34 END 209.906
HIERARCH ESO ISS AMBI TAU0 START 0.002606
HIERARCH ESO ISS AMBI TAU0 END 0.002606
HIERARCH ESO ISS AMBI TEMP 11.24
HIERARCH ESO ISS AMBI FWHM START 0.99
HIERARCH ESO ISS AMBI FWHM END 0.99