Exposure
ID
PIONI.2021-11-02T03:02:51.749_1
Header ID
PIONI.2021-11-02T03:02:51.749
Date updated
2021-11-02 03:11:53 UTC+0000
Release date
2021-11-02 03:02:51 UTC+0000
UTC Start
2021-11-02 03:02:51.749
UTC End
2021-11-02 03:03:17.349
MJD Start
59520.1269878335
MJD End
59520.1272841298
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003402
Ambient temperature (°C)
12.13
Seeing (arcsec)
0.99
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 22.8870 22.9050 139.4000 139.4000
A0-D0 16.3910 16.4400 43.3000 43.5000
A0-C1 15.6470 15.6850 119.1190 119.0570
B2-D0 29.5360 29.5310 352.9000 353.0000
B2-C1 9.8420 9.8410 352.8560 352.9530
D0-C1 19.6940 19.6900 172.8960 172.9940
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 59520.1269878335
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 22.887
HIERARCH ESO ISS PBL12 END 22.905
HIERARCH ESO ISS PBLA12 START 139.4
HIERARCH ESO ISS PBLA12 END 139.4
HIERARCH ESO ISS PBL13 START 16.391
HIERARCH ESO ISS PBL13 END 16.44
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.5
HIERARCH ESO ISS PBL14 START 15.647
HIERARCH ESO ISS PBL14 END 15.685
HIERARCH ESO ISS PBLA14 START 119.119
HIERARCH ESO ISS PBLA14 END 119.057
HIERARCH ESO ISS PBL23 START 29.536
HIERARCH ESO ISS PBL23 END 29.531
HIERARCH ESO ISS PBLA23 START 352.9
HIERARCH ESO ISS PBLA23 END 353.0
HIERARCH ESO ISS PBL24 START 9.842
HIERARCH ESO ISS PBL24 END 9.841
HIERARCH ESO ISS PBLA24 START 352.856
HIERARCH ESO ISS PBLA24 END 352.953
HIERARCH ESO ISS PBL34 START 19.694
HIERARCH ESO ISS PBL34 END 19.69
HIERARCH ESO ISS PBLA34 START 172.896
HIERARCH ESO ISS PBLA34 END 172.994
HIERARCH ESO ISS AMBI TAU0 START 0.003402
HIERARCH ESO ISS AMBI TAU0 END 0.003402
HIERARCH ESO ISS AMBI TEMP 12.13
HIERARCH ESO ISS AMBI FWHM START 0.99
HIERARCH ESO ISS AMBI FWHM END 0.99