Exposure
ID
PIONI.2021-10-29T03:23:00.276_1
Header ID
PIONI.2021-10-29T03:23:00.276
Date updated
2021-10-29 03:31:29 UTC+0000
Release date
2022-10-29 03:31:29 UTC+0000
UTC Start
2021-10-29 03:23:00.276
UTC End
2021-10-29 03:23:25.876
MJD Start
59516.1409754222
MJD End
59516.1412717185
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005983
Ambient temperature (°C)
13.25
Seeing (arcsec)
0.8
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 24.7900 24.7990 135.5000 135.5000
A0-D0 25.5590 25.6020 60.0000 60.1000
A0-C1 20.4010 20.4250 111.6650 111.6630
B2-D0 30.8150 30.8200 8.9000 9.0000
B2-C1 10.2660 10.2680 8.8350 8.9270
D0-C1 20.5480 20.5520 188.8960 188.9880
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 59516.1409754222
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 24.79
HIERARCH ESO ISS PBL12 END 24.799
HIERARCH ESO ISS PBLA12 START 135.5
HIERARCH ESO ISS PBLA12 END 135.5
HIERARCH ESO ISS PBL13 START 25.559
HIERARCH ESO ISS PBL13 END 25.602
HIERARCH ESO ISS PBLA13 START 60.0
HIERARCH ESO ISS PBLA13 END 60.1
HIERARCH ESO ISS PBL14 START 20.401
HIERARCH ESO ISS PBL14 END 20.425
HIERARCH ESO ISS PBLA14 START 111.665
HIERARCH ESO ISS PBLA14 END 111.663
HIERARCH ESO ISS PBL23 START 30.815
HIERARCH ESO ISS PBL23 END 30.82
HIERARCH ESO ISS PBLA23 START 8.9
HIERARCH ESO ISS PBLA23 END 9.0
HIERARCH ESO ISS PBL24 START 10.266
HIERARCH ESO ISS PBL24 END 10.268
HIERARCH ESO ISS PBLA24 START 8.835
HIERARCH ESO ISS PBLA24 END 8.927
HIERARCH ESO ISS PBL34 START 20.548
HIERARCH ESO ISS PBL34 END 20.552
HIERARCH ESO ISS PBLA34 START 188.896
HIERARCH ESO ISS PBLA34 END 188.988
HIERARCH ESO ISS AMBI TAU0 START 0.005983
HIERARCH ESO ISS AMBI TAU0 END 0.005983
HIERARCH ESO ISS AMBI TEMP 13.25
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.8