Exposure
ID
PIONI.2021-11-04T04:59:06.478_1
Header ID
PIONI.2021-11-04T04:59:06.478
Date updated
2021-11-04 05:05:45 UTC+0000
Release date
2021-11-04 04:59:06 UTC+0000
UTC Start
2021-11-04 04:59:06.478
UTC End
2021-11-04 04:59:32.078
MJD Start
59522.2077138652
MJD End
59522.2080101615
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0084185
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.315
Observation
ID
48736
Category
calibrator
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
36500
Name
tau02 Eri
RA
42.758876
DEC
-21.0041
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 122.2570 122.2470 241.6000 241.6000
K0-D0 95.8230 95.8100 252.8000 252.9000
K0-J3 56.3150 56.3100 334.9840 335.0490
B2-D0 33.9270 33.9270 28.0000 28.1000
B2-J3 137.6250 137.6250 37.4530 37.5070
D0-J3 104.3020 104.3020 40.5020 40.5550
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59522.2077138652
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.758876
DEC -21.0041
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 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
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 122.257
HIERARCH ESO ISS PBL12 END 122.247
HIERARCH ESO ISS PBLA12 START 241.6
HIERARCH ESO ISS PBLA12 END 241.6
HIERARCH ESO ISS PBL13 START 95.823
HIERARCH ESO ISS PBL13 END 95.81
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.9
HIERARCH ESO ISS PBL14 START 56.315
HIERARCH ESO ISS PBL14 END 56.31
HIERARCH ESO ISS PBLA14 START 334.984
HIERARCH ESO ISS PBLA14 END 335.049
HIERARCH ESO ISS PBL23 START 33.927
HIERARCH ESO ISS PBL23 END 33.927
HIERARCH ESO ISS PBLA23 START 28.0
HIERARCH ESO ISS PBLA23 END 28.1
HIERARCH ESO ISS PBL24 START 137.625
HIERARCH ESO ISS PBL24 END 137.625
HIERARCH ESO ISS PBLA24 START 37.453
HIERARCH ESO ISS PBLA24 END 37.507
HIERARCH ESO ISS PBL34 START 104.302
HIERARCH ESO ISS PBL34 END 104.302
HIERARCH ESO ISS PBLA34 START 40.502
HIERARCH ESO ISS PBLA34 END 40.555
HIERARCH ESO ISS AMBI TAU0 START 0.008407
HIERARCH ESO ISS AMBI TAU0 END 0.00843
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.31