Exposure
ID
PIONI.2021-11-12T07:01:36.384_1
Header ID
PIONI.2021-11-12T07:01:36.384
Date updated
2021-11-12 07:11:18 UTC+0000
Release date
2021-11-12 07:01:36 UTC+0000
UTC Start
2021-11-12 07:01:36.384
UTC End
2021-11-12 07:02:01.984
MJD Start
59530.2927822229
MJD End
59530.2930785192
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002985
Ambient temperature (°C)
13.16
Seeing (arcsec)
0.76
Observation
ID
48834
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
36572
Name
bet Eri
RA
76.961474
DEC
-5.08681
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 86.6020 86.5410 116.4000 116.5000
A0-J2 127.1580 127.0970 93.5000 93.6000
A0-J3 131.5910 131.6200 49.6220 49.6460
G1-J2 58.1400 58.1470 58.1000 58.1000
G1-J3 125.8670 125.8860 10.3860 10.4470
J2-J3 96.8410 96.8130 344.0100 344.0800
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 59530.2927822229
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.961474
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 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 86.602
HIERARCH ESO ISS PBL12 END 86.541
HIERARCH ESO ISS PBLA12 START 116.4
HIERARCH ESO ISS PBLA12 END 116.5
HIERARCH ESO ISS PBL13 START 127.158
HIERARCH ESO ISS PBL13 END 127.097
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 131.591
HIERARCH ESO ISS PBL14 END 131.62
HIERARCH ESO ISS PBLA14 START 49.622
HIERARCH ESO ISS PBLA14 END 49.646
HIERARCH ESO ISS PBL23 START 58.14
HIERARCH ESO ISS PBL23 END 58.147
HIERARCH ESO ISS PBLA23 START 58.1
HIERARCH ESO ISS PBLA23 END 58.1
HIERARCH ESO ISS PBL24 START 125.867
HIERARCH ESO ISS PBL24 END 125.886
HIERARCH ESO ISS PBLA24 START 10.386
HIERARCH ESO ISS PBLA24 END 10.447
HIERARCH ESO ISS PBL34 START 96.841
HIERARCH ESO ISS PBL34 END 96.813
HIERARCH ESO ISS PBLA34 START 344.01
HIERARCH ESO ISS PBLA34 END 344.08
HIERARCH ESO ISS AMBI TAU0 START 0.002985
HIERARCH ESO ISS AMBI TAU0 END 0.002985
HIERARCH ESO ISS AMBI TEMP 13.16
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.76