Exposure
ID
PIONI.2021-10-29T03:55:56.225_1
Header ID
PIONI.2021-10-29T03:55:56.225
Date updated
2021-10-29 04:06:24 UTC+0000
Release date
2022-10-29 04:06:24 UTC+0000
UTC Start
2021-10-29 03:55:56.225
UTC End
2021-10-29 03:56:21.825
MJD Start
59516.1638452015
MJD End
59516.1641414978
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005627
Ambient temperature (°C)
13.43
Seeing (arcsec)
0.44
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 25.1690 25.1730 135.9000 136.0000
A0-D0 27.7690 27.8060 63.9000 64.0000
A0-C1 21.5110 21.5280 111.8030 111.8090
B2-D0 31.2000 31.2080 13.8000 13.9000
B2-C1 10.3940 10.3970 13.7360 13.8220
D0-C1 20.8060 20.8110 193.8000 193.8860
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 59516.1638452015
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 25.169
HIERARCH ESO ISS PBL12 END 25.173
HIERARCH ESO ISS PBLA12 START 135.9
HIERARCH ESO ISS PBLA12 END 136.0
HIERARCH ESO ISS PBL13 START 27.769
HIERARCH ESO ISS PBL13 END 27.806
HIERARCH ESO ISS PBLA13 START 63.9
HIERARCH ESO ISS PBLA13 END 64.0
HIERARCH ESO ISS PBL14 START 21.511
HIERARCH ESO ISS PBL14 END 21.528
HIERARCH ESO ISS PBLA14 START 111.803
HIERARCH ESO ISS PBLA14 END 111.809
HIERARCH ESO ISS PBL23 START 31.2
HIERARCH ESO ISS PBL23 END 31.208
HIERARCH ESO ISS PBLA23 START 13.8
HIERARCH ESO ISS PBLA23 END 13.9
HIERARCH ESO ISS PBL24 START 10.394
HIERARCH ESO ISS PBL24 END 10.397
HIERARCH ESO ISS PBLA24 START 13.736
HIERARCH ESO ISS PBLA24 END 13.822
HIERARCH ESO ISS PBL34 START 20.806
HIERARCH ESO ISS PBL34 END 20.811
HIERARCH ESO ISS PBLA34 START 193.8
HIERARCH ESO ISS PBLA34 END 193.886
HIERARCH ESO ISS AMBI TAU0 START 0.005627
HIERARCH ESO ISS AMBI TAU0 END 0.005627
HIERARCH ESO ISS AMBI TEMP 13.43
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.44