Exposure
ID
PIONI.2021-11-05T05:47:37.379_1
Header ID
PIONI.2021-11-05T05:47:37.379
Date updated
2021-11-05 05:56:39 UTC+0000
Release date
2022-11-05 05:56:39 UTC+0000
UTC Start
2021-11-05 05:47:37.379
UTC End
2021-11-05 05:48:02.979
MJD Start
59523.2414048486
MJD End
59523.2417011449
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005621
Ambient temperature (°C)
11.09
Seeing (arcsec)
0.39
Observation
ID
48754
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
36515
Name
eps Eri
RA
53.227323
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 122.3320 122.3370 242.1000 242.2000
K0-D0 95.8990 95.8890 253.0000 253.0000
K0-J3 54.1190 54.1010 335.1780 335.2440
B2-D0 33.4100 33.4180 29.5000 29.6000
B2-J3 136.3770 136.4070 38.7840 38.8240
D0-J3 103.5440 103.5650 41.7650 41.8030
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 59523.2414048486
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227323
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 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 122.332
HIERARCH ESO ISS PBL12 END 122.337
HIERARCH ESO ISS PBLA12 START 242.1
HIERARCH ESO ISS PBLA12 END 242.2
HIERARCH ESO ISS PBL13 START 95.899
HIERARCH ESO ISS PBL13 END 95.889
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 54.119
HIERARCH ESO ISS PBL14 END 54.101
HIERARCH ESO ISS PBLA14 START 335.178
HIERARCH ESO ISS PBLA14 END 335.244
HIERARCH ESO ISS PBL23 START 33.41
HIERARCH ESO ISS PBL23 END 33.418
HIERARCH ESO ISS PBLA23 START 29.5
HIERARCH ESO ISS PBLA23 END 29.6
HIERARCH ESO ISS PBL24 START 136.377
HIERARCH ESO ISS PBL24 END 136.407
HIERARCH ESO ISS PBLA24 START 38.784
HIERARCH ESO ISS PBLA24 END 38.824
HIERARCH ESO ISS PBL34 START 103.544
HIERARCH ESO ISS PBL34 END 103.565
HIERARCH ESO ISS PBLA34 START 41.765
HIERARCH ESO ISS PBLA34 END 41.803
HIERARCH ESO ISS AMBI TAU0 START 0.005621
HIERARCH ESO ISS AMBI TAU0 END 0.005621
HIERARCH ESO ISS AMBI TEMP 11.09
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.39