Exposure
ID
PIONI.2021-11-02T05:50:24.816_1
Header ID
PIONI.2021-11-02T05:50:24.816
Date updated
2021-11-02 05:57:09 UTC+0000
Release date
2021-11-02 05:50:24 UTC+0000
UTC Start
2021-11-02 05:50:24.816
UTC End
2021-11-02 05:50:50.416
MJD Start
59520.2433427805
MJD End
59520.2436390768
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00236
Ambient temperature (°C)
11.27
Seeing (arcsec)
0.88
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 25.2550 25.2520 137.0000 137.0000
A0-D0 29.3630 29.3940 68.8000 68.8000
A0-C1 22.3910 22.3990 113.0710 113.0750
B2-D0 30.8060 30.8190 19.2000 19.3000
B2-C1 10.2630 10.2670 19.1800 19.2580
D0-C1 20.5440 20.5520 199.2480 199.3270
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 59520.2433427805
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 25.255
HIERARCH ESO ISS PBL12 END 25.252
HIERARCH ESO ISS PBLA12 START 137.0
HIERARCH ESO ISS PBLA12 END 137.0
HIERARCH ESO ISS PBL13 START 29.363
HIERARCH ESO ISS PBL13 END 29.394
HIERARCH ESO ISS PBLA13 START 68.8
HIERARCH ESO ISS PBLA13 END 68.8
HIERARCH ESO ISS PBL14 START 22.391
HIERARCH ESO ISS PBL14 END 22.399
HIERARCH ESO ISS PBLA14 START 113.071
HIERARCH ESO ISS PBLA14 END 113.075
HIERARCH ESO ISS PBL23 START 30.806
HIERARCH ESO ISS PBL23 END 30.819
HIERARCH ESO ISS PBLA23 START 19.2
HIERARCH ESO ISS PBLA23 END 19.3
HIERARCH ESO ISS PBL24 START 10.263
HIERARCH ESO ISS PBL24 END 10.267
HIERARCH ESO ISS PBLA24 START 19.18
HIERARCH ESO ISS PBLA24 END 19.258
HIERARCH ESO ISS PBL34 START 20.544
HIERARCH ESO ISS PBL34 END 20.552
HIERARCH ESO ISS PBLA34 START 199.248
HIERARCH ESO ISS PBLA34 END 199.327
HIERARCH ESO ISS AMBI TAU0 START 0.00236
HIERARCH ESO ISS AMBI TAU0 END 0.00236
HIERARCH ESO ISS AMBI TEMP 11.27
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.85