Exposure
ID
PIONI.2021-11-02T03:53:54.154_1
Header ID
PIONI.2021-11-02T03:53:54.154
Date updated
2021-11-02 04:01:49 UTC+0000
Release date
2021-11-02 03:53:54 UTC+0000
UTC Start
2021-11-02 03:53:54.154
UTC End
2021-11-02 03:54:19.754
MJD Start
59520.1624323418
MJD End
59520.1627286381
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.43
Seeing (arcsec)
0.9
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 24.2320 24.2450 136.9000 136.9000
A0-D0 20.8170 20.8690 56.0000 56.1000
A0-C1 18.5580 18.5880 115.2490 115.2180
B2-D0 29.3460 29.3470 1.3000 1.4000
B2-C1 9.7780 9.7790 1.3060 1.4060
D0-C1 19.5670 19.5680 181.3600 181.4600
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 59520.1624323418
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 24.232
HIERARCH ESO ISS PBL12 END 24.245
HIERARCH ESO ISS PBLA12 START 136.9
HIERARCH ESO ISS PBLA12 END 136.9
HIERARCH ESO ISS PBL13 START 20.817
HIERARCH ESO ISS PBL13 END 20.869
HIERARCH ESO ISS PBLA13 START 56.0
HIERARCH ESO ISS PBLA13 END 56.1
HIERARCH ESO ISS PBL14 START 18.558
HIERARCH ESO ISS PBL14 END 18.588
HIERARCH ESO ISS PBLA14 START 115.249
HIERARCH ESO ISS PBLA14 END 115.218
HIERARCH ESO ISS PBL23 START 29.346
HIERARCH ESO ISS PBL23 END 29.347
HIERARCH ESO ISS PBLA23 START 1.3
HIERARCH ESO ISS PBLA23 END 1.4
HIERARCH ESO ISS PBL24 START 9.778
HIERARCH ESO ISS PBL24 END 9.779
HIERARCH ESO ISS PBLA24 START 1.306
HIERARCH ESO ISS PBLA24 END 1.406
HIERARCH ESO ISS PBL34 START 19.567
HIERARCH ESO ISS PBL34 END 19.568
HIERARCH ESO ISS PBLA34 START 181.36
HIERARCH ESO ISS PBLA34 END 181.46
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.43
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9