Exposure
ID
PIONI.2021-11-02T03:32:41.555_1
Header ID
PIONI.2021-11-02T03:32:41.555
Date updated
2021-11-02 03:36:16 UTC+0000
Release date
2022-11-02 03:36:16 UTC+0000
UTC Start
2021-11-02 03:32:41.555
UTC End
2021-11-02 03:33:07.155
MJD Start
59520.147703182
MJD End
59520.1479994783
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.76
Seeing (arcsec)
0.93
Observation
ID
48709
Category
science
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
36480
Name
eps Eri
RA
53.226763
DEC
-9.45816
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 25.1040 25.1100 135.8000 135.8000
A0-D0 27.2970 27.3350 63.1000 63.2000
A0-C1 21.2910 21.3090 111.7320 111.7370
B2-D0 31.1000 31.1080 12.7000 12.8000
B2-C1 10.3610 10.3640 12.6500 12.7380
D0-C1 20.7390 20.7440 192.7140 192.8020
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59520.147703182
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226763
DEC -9.45816
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 25.104
HIERARCH ESO ISS PBL12 END 25.11
HIERARCH ESO ISS PBLA12 START 135.8
HIERARCH ESO ISS PBLA12 END 135.8
HIERARCH ESO ISS PBL13 START 27.297
HIERARCH ESO ISS PBL13 END 27.335
HIERARCH ESO ISS PBLA13 START 63.1
HIERARCH ESO ISS PBLA13 END 63.2
HIERARCH ESO ISS PBL14 START 21.291
HIERARCH ESO ISS PBL14 END 21.309
HIERARCH ESO ISS PBLA14 START 111.732
HIERARCH ESO ISS PBLA14 END 111.737
HIERARCH ESO ISS PBL23 START 31.1
HIERARCH ESO ISS PBL23 END 31.108
HIERARCH ESO ISS PBLA23 START 12.7
HIERARCH ESO ISS PBLA23 END 12.8
HIERARCH ESO ISS PBL24 START 10.361
HIERARCH ESO ISS PBL24 END 10.364
HIERARCH ESO ISS PBLA24 START 12.65
HIERARCH ESO ISS PBLA24 END 12.738
HIERARCH ESO ISS PBL34 START 20.739
HIERARCH ESO ISS PBL34 END 20.744
HIERARCH ESO ISS PBLA34 START 192.714
HIERARCH ESO ISS PBLA34 END 192.802
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.76
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.93