Exposure
ID
PIONI.2021-11-02T03:53:16.232_1
Header ID
PIONI.2021-11-02T03:53:16.232
Date updated
2021-11-02 04:01:49 UTC+0000
Release date
2021-11-02 03:53:16 UTC+0000
UTC Start
2021-11-02 03:53:16.233
UTC End
2021-11-02 03:53:41.833
MJD Start
59520.1619934337
MJD End
59520.16228973
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.5
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 24.2180 24.2310 136.9000 136.9000
A0-D0 20.7610 20.8140 55.8000 56.0000
A0-C1 18.5260 18.5560 115.2810 115.2510
B2-D0 29.3450 29.3460 1.2000 1.3000
B2-C1 9.7780 9.7780 1.2030 1.3000
D0-C1 19.5670 19.5670 181.2570 181.3550
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 59520.1619934337
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 24.218
HIERARCH ESO ISS PBL12 END 24.231
HIERARCH ESO ISS PBLA12 START 136.9
HIERARCH ESO ISS PBLA12 END 136.9
HIERARCH ESO ISS PBL13 START 20.761
HIERARCH ESO ISS PBL13 END 20.814
HIERARCH ESO ISS PBLA13 START 55.8
HIERARCH ESO ISS PBLA13 END 56.0
HIERARCH ESO ISS PBL14 START 18.526
HIERARCH ESO ISS PBL14 END 18.556
HIERARCH ESO ISS PBLA14 START 115.281
HIERARCH ESO ISS PBLA14 END 115.251
HIERARCH ESO ISS PBL23 START 29.345
HIERARCH ESO ISS PBL23 END 29.346
HIERARCH ESO ISS PBLA23 START 1.2
HIERARCH ESO ISS PBLA23 END 1.3
HIERARCH ESO ISS PBL24 START 9.778
HIERARCH ESO ISS PBL24 END 9.778
HIERARCH ESO ISS PBLA24 START 1.203
HIERARCH ESO ISS PBLA24 END 1.3
HIERARCH ESO ISS PBL34 START 19.567
HIERARCH ESO ISS PBL34 END 19.567
HIERARCH ESO ISS PBLA34 START 181.257
HIERARCH ESO ISS PBLA34 END 181.355
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.5
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9