Exposure
ID
PIONI.2021-11-09T06:20:40.590_1
Header ID
PIONI.2021-11-09T06:20:40.590
Date updated
2021-11-09 06:30:38 UTC+0000
Release date
2021-11-09 06:20:40 UTC+0000
UTC Start
2021-11-09 06:20:40.590
UTC End
2021-11-09 06:21:06.190
MJD Start
59527.2643586784
MJD End
59527.2646549747
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003874
Ambient temperature (°C)
11.6
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 90.1660 90.1470 114.2000 114.2000
A0-J2 129.0760 129.0920 92.3000 92.3000
A0-J3 127.1370 127.2080 46.6900 46.7330
G1-J2 56.4450 56.4760 55.9000 55.9000
G1-J3 124.5620 124.5720 4.7210 4.7880
J2-J3 99.3820 99.3530 338.4780 338.5340
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 59527.2643586784
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 90.166
HIERARCH ESO ISS PBL12 END 90.147
HIERARCH ESO ISS PBLA12 START 114.2
HIERARCH ESO ISS PBLA12 END 114.2
HIERARCH ESO ISS PBL13 START 129.076
HIERARCH ESO ISS PBL13 END 129.092
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 127.137
HIERARCH ESO ISS PBL14 END 127.208
HIERARCH ESO ISS PBLA14 START 46.69
HIERARCH ESO ISS PBLA14 END 46.733
HIERARCH ESO ISS PBL23 START 56.445
HIERARCH ESO ISS PBL23 END 56.476
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 55.9
HIERARCH ESO ISS PBL24 START 124.562
HIERARCH ESO ISS PBL24 END 124.572
HIERARCH ESO ISS PBLA24 START 4.721
HIERARCH ESO ISS PBLA24 END 4.788
HIERARCH ESO ISS PBL34 START 99.382
HIERARCH ESO ISS PBL34 END 99.353
HIERARCH ESO ISS PBLA34 START 338.478
HIERARCH ESO ISS PBLA34 END 338.534
HIERARCH ESO ISS AMBI TAU0 START 0.003874
HIERARCH ESO ISS AMBI TAU0 END 0.003874
HIERARCH ESO ISS AMBI TEMP 11.6
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.76