Exposure
ID
PIONI.2021-11-09T05:23:07.266_1
Header ID
PIONI.2021-11-09T05:23:07.266
Date updated
2021-11-09 05:30:50 UTC+0000
Release date
2022-11-09 05:30:49 UTC+0000
UTC Start
2021-11-09 05:23:07.265
UTC End
2021-11-09 05:23:32.865
MJD Start
59527.2243896467
MJD End
59527.224685943
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004419
Ambient temperature (°C)
11.94
Seeing (arcsec)
0.58
Observation
ID
48833
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
36571
Name
eps Eri
RA
53.227321
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 88.6910 88.6500 116.5000 116.5000
A0-J2 128.4910 128.4560 93.6000 93.7000
A0-J3 131.5680 131.5960 48.4800 48.5140
G1-J2 58.0780 58.0870 57.3000 57.3000
G1-J3 128.2160 128.2290 8.5790 8.6400
J2-J3 99.9020 99.8800 342.6890 342.7520
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 59527.2243896467
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227321
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 88.691
HIERARCH ESO ISS PBL12 END 88.65
HIERARCH ESO ISS PBLA12 START 116.5
HIERARCH ESO ISS PBLA12 END 116.5
HIERARCH ESO ISS PBL13 START 128.491
HIERARCH ESO ISS PBL13 END 128.456
HIERARCH ESO ISS PBLA13 START 93.6
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 131.568
HIERARCH ESO ISS PBL14 END 131.596
HIERARCH ESO ISS PBLA14 START 48.48
HIERARCH ESO ISS PBLA14 END 48.514
HIERARCH ESO ISS PBL23 START 58.078
HIERARCH ESO ISS PBL23 END 58.087
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.3
HIERARCH ESO ISS PBL24 START 128.216
HIERARCH ESO ISS PBL24 END 128.229
HIERARCH ESO ISS PBLA24 START 8.579
HIERARCH ESO ISS PBLA24 END 8.64
HIERARCH ESO ISS PBL34 START 99.902
HIERARCH ESO ISS PBL34 END 99.88
HIERARCH ESO ISS PBLA34 START 342.689
HIERARCH ESO ISS PBLA34 END 342.752
HIERARCH ESO ISS AMBI TAU0 START 0.004281
HIERARCH ESO ISS AMBI TAU0 END 0.004557
HIERARCH ESO ISS AMBI TEMP 11.94
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.6