Exposure
ID
PIONI.2021-11-02T03:26:16.028_1
Header ID
PIONI.2021-11-02T03:26:16.028
Date updated
2021-11-02 03:36:16 UTC+0000
Release date
2021-11-02 03:26:16 UTC+0000
UTC Start
2021-11-02 03:26:16.027
UTC End
2021-11-02 03:26:41.627
MJD Start
59520.143241059
MJD End
59520.1435373553
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0030335
Ambient temperature (°C)
11.87
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 23.5600 23.5760 138.0000 138.0000
A0-D0 18.3840 18.4360 50.0000 50.1000
A0-C1 17.0530 17.0870 117.0130 116.9670
B2-D0 29.3800 29.3780 356.7000 356.8000
B2-C1 9.7900 9.7890 356.6980 356.7980
D0-C1 19.5900 19.5890 176.7450 176.8450
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 59520.143241059
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 23.56
HIERARCH ESO ISS PBL12 END 23.576
HIERARCH ESO ISS PBLA12 START 138.0
HIERARCH ESO ISS PBLA12 END 138.0
HIERARCH ESO ISS PBL13 START 18.384
HIERARCH ESO ISS PBL13 END 18.436
HIERARCH ESO ISS PBLA13 START 50.0
HIERARCH ESO ISS PBLA13 END 50.1
HIERARCH ESO ISS PBL14 START 17.053
HIERARCH ESO ISS PBL14 END 17.087
HIERARCH ESO ISS PBLA14 START 117.013
HIERARCH ESO ISS PBLA14 END 116.967
HIERARCH ESO ISS PBL23 START 29.38
HIERARCH ESO ISS PBL23 END 29.378
HIERARCH ESO ISS PBLA23 START 356.7
HIERARCH ESO ISS PBLA23 END 356.8
HIERARCH ESO ISS PBL24 START 9.79
HIERARCH ESO ISS PBL24 END 9.789
HIERARCH ESO ISS PBLA24 START 356.698
HIERARCH ESO ISS PBLA24 END 356.798
HIERARCH ESO ISS PBL34 START 19.59
HIERARCH ESO ISS PBL34 END 19.589
HIERARCH ESO ISS PBLA34 START 176.745
HIERARCH ESO ISS PBLA34 END 176.845
HIERARCH ESO ISS AMBI TAU0 START 0.002996
HIERARCH ESO ISS AMBI TAU0 END 0.003071
HIERARCH ESO ISS AMBI TEMP 11.87
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89