Exposure
ID
PIONI.2021-10-29T06:08:38.181_1
Header ID
PIONI.2021-10-29T06:08:38.181
Date updated
2021-10-29 06:16:37 UTC+0000
Release date
2021-10-29 06:08:38 UTC+0000
UTC Start
2021-10-29 06:08:38.181
UTC End
2021-10-29 06:09:03.781
MJD Start
59516.2559974631
MJD End
59516.2562937594
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0060145
Ambient temperature (°C)
12.2
Seeing (arcsec)
0.4
Observation
ID
48671
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
36451
Name
bet Eri
RA
76.960918
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 25.2430 25.2400 137.1000 137.1000
A0-D0 29.4900 29.5200 68.9000 69.0000
A0-C1 22.4220 22.4290 113.0900 113.0960
B2-D0 30.8570 30.8700 19.5000 19.6000
B2-C1 10.2800 10.2840 19.5020 19.5800
D0-C1 20.5780 20.5860 199.5710 199.6480
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 59516.2559974631
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.960918
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 25.243
HIERARCH ESO ISS PBL12 END 25.24
HIERARCH ESO ISS PBLA12 START 137.1
HIERARCH ESO ISS PBLA12 END 137.1
HIERARCH ESO ISS PBL13 START 29.49
HIERARCH ESO ISS PBL13 END 29.52
HIERARCH ESO ISS PBLA13 START 68.9
HIERARCH ESO ISS PBLA13 END 69.0
HIERARCH ESO ISS PBL14 START 22.422
HIERARCH ESO ISS PBL14 END 22.429
HIERARCH ESO ISS PBLA14 START 113.09
HIERARCH ESO ISS PBLA14 END 113.096
HIERARCH ESO ISS PBL23 START 30.857
HIERARCH ESO ISS PBL23 END 30.87
HIERARCH ESO ISS PBLA23 START 19.5
HIERARCH ESO ISS PBLA23 END 19.6
HIERARCH ESO ISS PBL24 START 10.28
HIERARCH ESO ISS PBL24 END 10.284
HIERARCH ESO ISS PBLA24 START 19.502
HIERARCH ESO ISS PBLA24 END 19.58
HIERARCH ESO ISS PBL34 START 20.578
HIERARCH ESO ISS PBL34 END 20.586
HIERARCH ESO ISS PBLA34 START 199.571
HIERARCH ESO ISS PBLA34 END 199.648
HIERARCH ESO ISS AMBI TAU0 START 0.005677
HIERARCH ESO ISS AMBI TAU0 END 0.006352
HIERARCH ESO ISS AMBI TEMP 12.2
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.4