Exposure
ID
PIONI.2021-10-30T02:48:12.562_1
Header ID
PIONI.2021-10-30T02:48:12.562
Date updated
2021-10-30 02:56:52 UTC+0000
Release date
2022-10-30 02:56:52 UTC+0000
UTC Start
2021-10-30 02:48:12.562
UTC End
2021-10-30 02:48:38.162
MJD Start
59517.1168120611
MJD End
59517.1171083574
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005257
Ambient temperature (°C)
13.98
Seeing (arcsec)
0.78
Observation
ID
48669
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
36449
Name
eps Eri
RA
53.226765
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 24.2120 24.2250 135.6000 135.6000
A0-D0 23.2340 23.2790 55.3000 55.4000
A0-C1 19.0400 19.0680 111.9870 111.9770
B2-D0 30.5980 30.6010 4.0000 4.1000
B2-C1 10.1950 10.1960 4.0060 4.0980
D0-C1 20.4030 20.4050 184.0620 184.1540
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 59517.1168120611
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226765
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 24.212
HIERARCH ESO ISS PBL12 END 24.225
HIERARCH ESO ISS PBLA12 START 135.6
HIERARCH ESO ISS PBLA12 END 135.6
HIERARCH ESO ISS PBL13 START 23.234
HIERARCH ESO ISS PBL13 END 23.279
HIERARCH ESO ISS PBLA13 START 55.3
HIERARCH ESO ISS PBLA13 END 55.4
HIERARCH ESO ISS PBL14 START 19.04
HIERARCH ESO ISS PBL14 END 19.068
HIERARCH ESO ISS PBLA14 START 111.987
HIERARCH ESO ISS PBLA14 END 111.977
HIERARCH ESO ISS PBL23 START 30.598
HIERARCH ESO ISS PBL23 END 30.601
HIERARCH ESO ISS PBLA23 START 4.0
HIERARCH ESO ISS PBLA23 END 4.1
HIERARCH ESO ISS PBL24 START 10.195
HIERARCH ESO ISS PBL24 END 10.196
HIERARCH ESO ISS PBLA24 START 4.006
HIERARCH ESO ISS PBLA24 END 4.098
HIERARCH ESO ISS PBL34 START 20.403
HIERARCH ESO ISS PBL34 END 20.405
HIERARCH ESO ISS PBLA34 START 184.062
HIERARCH ESO ISS PBLA34 END 184.154
HIERARCH ESO ISS AMBI TAU0 START 0.005257
HIERARCH ESO ISS AMBI TAU0 END 0.005257
HIERARCH ESO ISS AMBI TEMP 13.98
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.78