Exposure
ID
PIONI.2021-10-29T02:11:21.718_1
Header ID
PIONI.2021-10-29T02:11:21.718
Date updated
2021-10-29 02:16:46 UTC+0000
Release date
2021-10-29 02:11:21 UTC+0000
UTC Start
2021-10-29 02:11:21.718
UTC End
2021-10-29 02:11:47.318
MJD Start
59516.0912235924
MJD End
59516.0915198887
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0050515
Ambient temperature (°C)
13.73
Seeing (arcsec)
0.535
Observation
ID
48668
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
36448
Name
tau02 Eri
RA
42.758281
DEC
-21.0041
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 22.9830 23.0020 132.4000 132.5000
A0-D0 25.8690 25.9030 47.9000 48.1000
A0-C1 18.2850 18.3160 104.4730 104.5020
B2-D0 32.9110 32.9130 3.9000 4.0000
B2-C1 10.9640 10.9650 3.8760 3.9650
D0-C1 21.9470 21.9480 183.9280 184.0170
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 59516.0912235924
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.758281
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 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 22.983
HIERARCH ESO ISS PBL12 END 23.002
HIERARCH ESO ISS PBLA12 START 132.4
HIERARCH ESO ISS PBLA12 END 132.5
HIERARCH ESO ISS PBL13 START 25.869
HIERARCH ESO ISS PBL13 END 25.903
HIERARCH ESO ISS PBLA13 START 47.9
HIERARCH ESO ISS PBLA13 END 48.1
HIERARCH ESO ISS PBL14 START 18.285
HIERARCH ESO ISS PBL14 END 18.316
HIERARCH ESO ISS PBLA14 START 104.473
HIERARCH ESO ISS PBLA14 END 104.502
HIERARCH ESO ISS PBL23 START 32.911
HIERARCH ESO ISS PBL23 END 32.913
HIERARCH ESO ISS PBLA23 START 3.9
HIERARCH ESO ISS PBLA23 END 4.0
HIERARCH ESO ISS PBL24 START 10.964
HIERARCH ESO ISS PBL24 END 10.965
HIERARCH ESO ISS PBLA24 START 3.876
HIERARCH ESO ISS PBLA24 END 3.965
HIERARCH ESO ISS PBL34 START 21.947
HIERARCH ESO ISS PBL34 END 21.948
HIERARCH ESO ISS PBLA34 START 183.928
HIERARCH ESO ISS PBLA34 END 184.017
HIERARCH ESO ISS AMBI TAU0 START 0.005307
HIERARCH ESO ISS AMBI TAU0 END 0.004796
HIERARCH ESO ISS AMBI TEMP 13.73
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.54