Exposure
ID
PIONI.2021-10-29T03:24:54.593_1
Header ID
PIONI.2021-10-29T03:24:54.593
Date updated
2021-10-29 03:31:29 UTC+0000
Release date
2022-10-29 03:31:29 UTC+0000
UTC Start
2021-10-29 03:24:54.593
UTC End
2021-10-29 03:25:20.193
MJD Start
59516.1422985271
MJD End
59516.1425948234
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005222
Ambient temperature (°C)
13.26
Seeing (arcsec)
0.8
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 24.8190 24.8280 135.5000 135.5000
A0-D0 25.6970 25.7390 60.3000 60.4000
A0-C1 20.4760 20.4990 111.6610 111.6600
B2-D0 30.8330 30.8390 9.2000 9.3000
B2-C1 10.2730 10.2740 9.1300 9.2220
D0-C1 20.5600 20.5640 189.1910 189.2830
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 59516.1422985271
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 24.819
HIERARCH ESO ISS PBL12 END 24.828
HIERARCH ESO ISS PBLA12 START 135.5
HIERARCH ESO ISS PBLA12 END 135.5
HIERARCH ESO ISS PBL13 START 25.697
HIERARCH ESO ISS PBL13 END 25.739
HIERARCH ESO ISS PBLA13 START 60.3
HIERARCH ESO ISS PBLA13 END 60.4
HIERARCH ESO ISS PBL14 START 20.476
HIERARCH ESO ISS PBL14 END 20.499
HIERARCH ESO ISS PBLA14 START 111.661
HIERARCH ESO ISS PBLA14 END 111.66
HIERARCH ESO ISS PBL23 START 30.833
HIERARCH ESO ISS PBL23 END 30.839
HIERARCH ESO ISS PBLA23 START 9.2
HIERARCH ESO ISS PBLA23 END 9.3
HIERARCH ESO ISS PBL24 START 10.273
HIERARCH ESO ISS PBL24 END 10.274
HIERARCH ESO ISS PBLA24 START 9.13
HIERARCH ESO ISS PBLA24 END 9.222
HIERARCH ESO ISS PBL34 START 20.56
HIERARCH ESO ISS PBL34 END 20.564
HIERARCH ESO ISS PBLA34 START 189.191
HIERARCH ESO ISS PBLA34 END 189.283
HIERARCH ESO ISS AMBI TAU0 START 0.005222
HIERARCH ESO ISS AMBI TAU0 END 0.005222
HIERARCH ESO ISS AMBI TEMP 13.26
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.8