Exposure
ID
PIONI.2021-10-29T03:57:50.691_1
Header ID
PIONI.2021-10-29T03:57:50.691
Date updated
2021-10-29 04:06:24 UTC+0000
Release date
2022-10-29 04:06:24 UTC+0000
UTC Start
2021-10-29 03:57:50.690
UTC End
2021-10-29 03:58:16.290
MJD Start
59516.1651700274
MJD End
59516.1654663237
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004738
Ambient temperature (°C)
13.44
Seeing (arcsec)
0.48
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 25.1830 25.1870 136.0000 136.0000
A0-D0 27.8870 27.9230 64.1000 64.2000
A0-C1 21.5650 21.5810 111.8260 111.8330
B2-D0 31.2260 31.2350 14.1000 14.1000
B2-C1 10.4030 10.4060 14.0120 14.0980
D0-C1 20.8230 20.8290 194.0760 194.1620
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 59516.1651700274
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 25.183
HIERARCH ESO ISS PBL12 END 25.187
HIERARCH ESO ISS PBLA12 START 136.0
HIERARCH ESO ISS PBLA12 END 136.0
HIERARCH ESO ISS PBL13 START 27.887
HIERARCH ESO ISS PBL13 END 27.923
HIERARCH ESO ISS PBLA13 START 64.1
HIERARCH ESO ISS PBLA13 END 64.2
HIERARCH ESO ISS PBL14 START 21.565
HIERARCH ESO ISS PBL14 END 21.581
HIERARCH ESO ISS PBLA14 START 111.826
HIERARCH ESO ISS PBLA14 END 111.833
HIERARCH ESO ISS PBL23 START 31.226
HIERARCH ESO ISS PBL23 END 31.235
HIERARCH ESO ISS PBLA23 START 14.1
HIERARCH ESO ISS PBLA23 END 14.1
HIERARCH ESO ISS PBL24 START 10.403
HIERARCH ESO ISS PBL24 END 10.406
HIERARCH ESO ISS PBLA24 START 14.012
HIERARCH ESO ISS PBLA24 END 14.098
HIERARCH ESO ISS PBL34 START 20.823
HIERARCH ESO ISS PBL34 END 20.829
HIERARCH ESO ISS PBLA34 START 194.076
HIERARCH ESO ISS PBLA34 END 194.162
HIERARCH ESO ISS AMBI TAU0 START 0.004738
HIERARCH ESO ISS AMBI TAU0 END 0.004738
HIERARCH ESO ISS AMBI TEMP 13.44
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.48