Exposure
ID
PIONI.2021-11-02T03:03:29.758_1
Header ID
PIONI.2021-11-02T03:03:29.758
Date updated
2021-11-02 03:11:53 UTC+0000
Release date
2021-11-02 03:03:29 UTC+0000
UTC Start
2021-11-02 03:03:29.758
UTC End
2021-11-02 03:03:55.358
MJD Start
59520.1274277517
MJD End
59520.127724048
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003192
Ambient temperature (°C)
12.03
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 22.9060 22.9240 139.4000 139.3000
A0-D0 16.4430 16.4920 43.5000 43.7000
A0-C1 15.6870 15.7240 119.0530 118.9910
B2-D0 29.5310 29.5250 353.0000 353.1000
B2-C1 9.8400 9.8390 352.9590 353.0560
D0-C1 19.6900 19.6870 172.9990 173.0970
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 59520.1274277517
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 22.906
HIERARCH ESO ISS PBL12 END 22.924
HIERARCH ESO ISS PBLA12 START 139.4
HIERARCH ESO ISS PBLA12 END 139.3
HIERARCH ESO ISS PBL13 START 16.443
HIERARCH ESO ISS PBL13 END 16.492
HIERARCH ESO ISS PBLA13 START 43.5
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 15.687
HIERARCH ESO ISS PBL14 END 15.724
HIERARCH ESO ISS PBLA14 START 119.053
HIERARCH ESO ISS PBLA14 END 118.991
HIERARCH ESO ISS PBL23 START 29.531
HIERARCH ESO ISS PBL23 END 29.525
HIERARCH ESO ISS PBLA23 START 353.0
HIERARCH ESO ISS PBLA23 END 353.1
HIERARCH ESO ISS PBL24 START 9.84
HIERARCH ESO ISS PBL24 END 9.839
HIERARCH ESO ISS PBLA24 START 352.959
HIERARCH ESO ISS PBLA24 END 353.056
HIERARCH ESO ISS PBL34 START 19.69
HIERARCH ESO ISS PBL34 END 19.687
HIERARCH ESO ISS PBLA34 START 172.999
HIERARCH ESO ISS PBLA34 END 173.097
HIERARCH ESO ISS AMBI TAU0 START 0.003192
HIERARCH ESO ISS AMBI TAU0 END 0.003192
HIERARCH ESO ISS AMBI TEMP 12.03
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89