Exposure
ID
PIONI.2021-11-02T04:28:34.092_1
Header ID
PIONI.2021-11-02T04:28:34.092
Date updated
2021-11-02 04:36:24 UTC+0000
Release date
2021-11-02 04:28:34 UTC+0000
UTC Start
2021-11-02 04:28:34.091
UTC End
2021-11-02 04:28:59.691
MJD Start
59520.186505686
MJD End
59520.1868019823
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003946
Ambient temperature (°C)
11.28
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 24.8560 24.8650 136.1000 136.1000
A0-D0 23.7740 23.8230 61.4000 61.4000
A0-C1 20.1560 20.1800 113.8560 113.8380
B2-D0 29.5330 29.5380 7.1000 7.2000
B2-C1 9.8400 9.8420 7.0280 7.1250
D0-C1 19.6930 19.6970 187.0890 187.1870
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 59520.186505686
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 24.856
HIERARCH ESO ISS PBL12 END 24.865
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 23.774
HIERARCH ESO ISS PBL13 END 23.823
HIERARCH ESO ISS PBLA13 START 61.4
HIERARCH ESO ISS PBLA13 END 61.4
HIERARCH ESO ISS PBL14 START 20.156
HIERARCH ESO ISS PBL14 END 20.18
HIERARCH ESO ISS PBLA14 START 113.856
HIERARCH ESO ISS PBLA14 END 113.838
HIERARCH ESO ISS PBL23 START 29.533
HIERARCH ESO ISS PBL23 END 29.538
HIERARCH ESO ISS PBLA23 START 7.1
HIERARCH ESO ISS PBLA23 END 7.2
HIERARCH ESO ISS PBL24 START 9.84
HIERARCH ESO ISS PBL24 END 9.842
HIERARCH ESO ISS PBLA24 START 7.028
HIERARCH ESO ISS PBLA24 END 7.125
HIERARCH ESO ISS PBL34 START 19.693
HIERARCH ESO ISS PBL34 END 19.697
HIERARCH ESO ISS PBLA34 START 187.089
HIERARCH ESO ISS PBLA34 END 187.187
HIERARCH ESO ISS AMBI TAU0 START 0.003946
HIERARCH ESO ISS AMBI TAU0 END 0.003946
HIERARCH ESO ISS AMBI TEMP 11.28
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89