Exposure
ID
PIONI.2021-11-02T03:17:25.365_1
Header ID
PIONI.2021-11-02T03:17:25.365
Date updated
2021-11-02 03:26:13 UTC+0000
Release date
2021-11-02 03:17:25 UTC+0000
UTC Start
2021-11-02 03:17:25.365
UTC End
2021-11-02 03:17:50.965
MJD Start
59520.1370991273
MJD End
59520.1373954236
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002918
Ambient temperature (°C)
11.89
Seeing (arcsec)
0.985
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 24.8460 24.8540 135.5000 135.6000
A0-D0 29.9980 30.0220 61.3000 61.4000
A0-C1 21.5490 21.5640 109.0330 109.0710
B2-D0 33.3280 33.3320 15.5000 15.6000
B2-C1 11.1030 11.1040 15.4710 15.5480
D0-C1 22.2260 22.2280 195.5310 195.6090
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 59520.1370991273
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 24.846
HIERARCH ESO ISS PBL12 END 24.854
HIERARCH ESO ISS PBLA12 START 135.5
HIERARCH ESO ISS PBLA12 END 135.6
HIERARCH ESO ISS PBL13 START 29.998
HIERARCH ESO ISS PBL13 END 30.022
HIERARCH ESO ISS PBLA13 START 61.3
HIERARCH ESO ISS PBLA13 END 61.4
HIERARCH ESO ISS PBL14 START 21.549
HIERARCH ESO ISS PBL14 END 21.564
HIERARCH ESO ISS PBLA14 START 109.033
HIERARCH ESO ISS PBLA14 END 109.071
HIERARCH ESO ISS PBL23 START 33.328
HIERARCH ESO ISS PBL23 END 33.332
HIERARCH ESO ISS PBLA23 START 15.5
HIERARCH ESO ISS PBLA23 END 15.6
HIERARCH ESO ISS PBL24 START 11.103
HIERARCH ESO ISS PBL24 END 11.104
HIERARCH ESO ISS PBLA24 START 15.471
HIERARCH ESO ISS PBLA24 END 15.548
HIERARCH ESO ISS PBL34 START 22.226
HIERARCH ESO ISS PBL34 END 22.228
HIERARCH ESO ISS PBLA34 START 195.531
HIERARCH ESO ISS PBLA34 END 195.609
HIERARCH ESO ISS AMBI TAU0 START 0.002918
HIERARCH ESO ISS AMBI TAU0 END 0.002918
HIERARCH ESO ISS AMBI TEMP 11.89
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 0.91