Exposure
ID
PIONI.2021-11-09T06:21:18.741_1
Header ID
PIONI.2021-11-09T06:21:18.741
Date updated
2021-11-09 06:30:38 UTC+0000
Release date
2021-11-09 06:21:18 UTC+0000
UTC Start
2021-11-09 06:21:18.741
UTC End
2021-11-09 06:21:44.341
MJD Start
59527.264800244
MJD End
59527.2650965403
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003672
Ambient temperature (°C)
11.6
Seeing (arcsec)
0.78
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 90.1460 90.1260 114.2000 114.2000
A0-J2 129.0930 129.1080 92.3000 92.4000
A0-J3 127.2110 127.2810 46.7350 46.7780
G1-J2 56.4780 56.5080 55.9000 55.9000
G1-J3 124.5720 124.5820 4.7920 4.8590
J2-J3 99.3510 99.3220 338.5370 338.5940
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 59527.264800244
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 90.146
HIERARCH ESO ISS PBL12 END 90.126
HIERARCH ESO ISS PBLA12 START 114.2
HIERARCH ESO ISS PBLA12 END 114.2
HIERARCH ESO ISS PBL13 START 129.093
HIERARCH ESO ISS PBL13 END 129.108
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.4
HIERARCH ESO ISS PBL14 START 127.211
HIERARCH ESO ISS PBL14 END 127.281
HIERARCH ESO ISS PBLA14 START 46.735
HIERARCH ESO ISS PBLA14 END 46.778
HIERARCH ESO ISS PBL23 START 56.478
HIERARCH ESO ISS PBL23 END 56.508
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 55.9
HIERARCH ESO ISS PBL24 START 124.572
HIERARCH ESO ISS PBL24 END 124.582
HIERARCH ESO ISS PBLA24 START 4.792
HIERARCH ESO ISS PBLA24 END 4.859
HIERARCH ESO ISS PBL34 START 99.351
HIERARCH ESO ISS PBL34 END 99.322
HIERARCH ESO ISS PBLA34 START 338.537
HIERARCH ESO ISS PBLA34 END 338.594
HIERARCH ESO ISS AMBI TAU0 START 0.003874
HIERARCH ESO ISS AMBI TAU0 END 0.00347
HIERARCH ESO ISS AMBI TEMP 11.6
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.8