Exposure
ID
PIONI.2021-10-30T03:17:52.559_1
Header ID
PIONI.2021-10-30T03:17:52.559
Date updated
2021-10-30 03:26:18 UTC+0000
Release date
2022-10-30 03:26:18 UTC+0000
UTC Start
2021-10-30 03:17:52.559
UTC End
2021-10-30 03:18:18.159
MJD Start
59517.1374138766
MJD End
59517.1377101729
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006709
Ambient temperature (°C)
14.59
Seeing (arcsec)
0.53
Observation
ID
48669
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
36449
Name
eps Eri
RA
53.226765
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 24.7720 24.7810 135.5000 135.5000
A0-D0 25.4740 25.5160 59.9000 59.9000
A0-C1 20.3550 20.3780 111.6690 111.6670
B2-D0 30.8040 30.8090 8.7000 8.8000
B2-C1 10.2630 10.2650 8.6540 8.7440
D0-C1 20.5410 20.5440 188.7150 188.8050
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 59517.1374138766
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226765
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 24.772
HIERARCH ESO ISS PBL12 END 24.781
HIERARCH ESO ISS PBLA12 START 135.5
HIERARCH ESO ISS PBLA12 END 135.5
HIERARCH ESO ISS PBL13 START 25.474
HIERARCH ESO ISS PBL13 END 25.516
HIERARCH ESO ISS PBLA13 START 59.9
HIERARCH ESO ISS PBLA13 END 59.9
HIERARCH ESO ISS PBL14 START 20.355
HIERARCH ESO ISS PBL14 END 20.378
HIERARCH ESO ISS PBLA14 START 111.669
HIERARCH ESO ISS PBLA14 END 111.667
HIERARCH ESO ISS PBL23 START 30.804
HIERARCH ESO ISS PBL23 END 30.809
HIERARCH ESO ISS PBLA23 START 8.7
HIERARCH ESO ISS PBLA23 END 8.8
HIERARCH ESO ISS PBL24 START 10.263
HIERARCH ESO ISS PBL24 END 10.265
HIERARCH ESO ISS PBLA24 START 8.654
HIERARCH ESO ISS PBLA24 END 8.744
HIERARCH ESO ISS PBL34 START 20.541
HIERARCH ESO ISS PBL34 END 20.544
HIERARCH ESO ISS PBLA34 START 188.715
HIERARCH ESO ISS PBLA34 END 188.805
HIERARCH ESO ISS AMBI TAU0 START 0.006709
HIERARCH ESO ISS AMBI TAU0 END 0.006709
HIERARCH ESO ISS AMBI TEMP 14.59
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.53