Exposure
ID
PIONI.2021-11-02T03:25:37.847_1
Header ID
PIONI.2021-11-02T03:25:37.847
Date updated
2021-11-02 03:36:16 UTC+0000
Release date
2021-11-02 03:25:37 UTC+0000
UTC Start
2021-11-02 03:25:37.847
UTC End
2021-11-02 03:26:03.447
MJD Start
59520.1427991595
MJD End
59520.1430954558
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002996
Ambient temperature (°C)
11.87
Seeing (arcsec)
0.89
Observation
ID
48708
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
36479
Name
bet Eri
RA
76.960917
DEC
-5.08681
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 23.5430 23.5590 138.1000 138.0000
A0-D0 18.3290 18.3810 49.8000 50.0000
A0-C1 17.0160 17.0510 117.0610 117.0150
B2-D0 29.3830 29.3810 356.6000 356.7000
B2-C1 9.7910 9.7900 356.5930 356.6920
D0-C1 19.5920 19.5900 176.6400 176.7400
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 59520.1427991595
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.960917
DEC -5.08681
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 23.543
HIERARCH ESO ISS PBL12 END 23.559
HIERARCH ESO ISS PBLA12 START 138.1
HIERARCH ESO ISS PBLA12 END 138.0
HIERARCH ESO ISS PBL13 START 18.329
HIERARCH ESO ISS PBL13 END 18.381
HIERARCH ESO ISS PBLA13 START 49.8
HIERARCH ESO ISS PBLA13 END 50.0
HIERARCH ESO ISS PBL14 START 17.016
HIERARCH ESO ISS PBL14 END 17.051
HIERARCH ESO ISS PBLA14 START 117.061
HIERARCH ESO ISS PBLA14 END 117.015
HIERARCH ESO ISS PBL23 START 29.383
HIERARCH ESO ISS PBL23 END 29.381
HIERARCH ESO ISS PBLA23 START 356.6
HIERARCH ESO ISS PBLA23 END 356.7
HIERARCH ESO ISS PBL24 START 9.791
HIERARCH ESO ISS PBL24 END 9.79
HIERARCH ESO ISS PBLA24 START 356.593
HIERARCH ESO ISS PBLA24 END 356.692
HIERARCH ESO ISS PBL34 START 19.592
HIERARCH ESO ISS PBL34 END 19.59
HIERARCH ESO ISS PBLA34 START 176.64
HIERARCH ESO ISS PBLA34 END 176.74
HIERARCH ESO ISS AMBI TAU0 START 0.002996
HIERARCH ESO ISS AMBI TAU0 END 0.002996
HIERARCH ESO ISS AMBI TEMP 11.87
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89