Exposure
ID
PIONI.2021-11-02T05:25:29.798_1
Header ID
PIONI.2021-11-02T05:25:29.798
Date updated
2021-11-02 05:32:08 UTC+0000
Release date
2021-11-02 05:25:29 UTC+0000
UTC Start
2021-11-02 05:25:29.798
UTC End
2021-11-02 05:25:55.398
MJD Start
59520.2260393281
MJD End
59520.2263356244
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003123
Ambient temperature (°C)
11.29
Seeing (arcsec)
0.77
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 25.2960 25.2970 136.3000 136.3000
A0-D0 27.9360 27.9730 67.1000 67.1000
A0-C1 21.9560 21.9690 112.9980 112.9960
B2-D0 30.3250 30.3350 15.8000 15.9000
B2-C1 10.1030 10.1060 15.7670 15.8530
D0-C1 20.2220 20.2290 195.8350 195.9200
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 59520.2260393281
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 25.296
HIERARCH ESO ISS PBL12 END 25.297
HIERARCH ESO ISS PBLA12 START 136.3
HIERARCH ESO ISS PBLA12 END 136.3
HIERARCH ESO ISS PBL13 START 27.936
HIERARCH ESO ISS PBL13 END 27.973
HIERARCH ESO ISS PBLA13 START 67.1
HIERARCH ESO ISS PBLA13 END 67.1
HIERARCH ESO ISS PBL14 START 21.956
HIERARCH ESO ISS PBL14 END 21.969
HIERARCH ESO ISS PBLA14 START 112.998
HIERARCH ESO ISS PBLA14 END 112.996
HIERARCH ESO ISS PBL23 START 30.325
HIERARCH ESO ISS PBL23 END 30.335
HIERARCH ESO ISS PBLA23 START 15.8
HIERARCH ESO ISS PBLA23 END 15.9
HIERARCH ESO ISS PBL24 START 10.103
HIERARCH ESO ISS PBL24 END 10.106
HIERARCH ESO ISS PBLA24 START 15.767
HIERARCH ESO ISS PBLA24 END 15.853
HIERARCH ESO ISS PBL34 START 20.222
HIERARCH ESO ISS PBL34 END 20.229
HIERARCH ESO ISS PBLA34 START 195.835
HIERARCH ESO ISS PBLA34 END 195.92
HIERARCH ESO ISS AMBI TAU0 START 0.003123
HIERARCH ESO ISS AMBI TAU0 END 0.003123
HIERARCH ESO ISS AMBI TEMP 11.29
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.77