Exposure
ID
PIONI.2021-11-04T06:36:58.352_1
Header ID
PIONI.2021-11-04T06:36:58.352
Date updated
2021-11-04 06:41:09 UTC+0000
Release date
2022-11-04 06:41:09 UTC+0000
UTC Start
2021-11-04 06:36:58.352
UTC End
2021-11-04 06:37:23.952
MJD Start
59522.2756753741
MJD End
59522.2759716704
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.007841
Ambient temperature (°C)
11.15
Seeing (arcsec)
0.33
Observation
ID
48737
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
36501
Name
eps Eri
RA
53.227324
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 120.8270 120.7840 243.6000 243.6000
K0-D0 93.4770 93.4240 254.4000 254.4000
K0-J3 52.7550 52.7380 340.6440 340.7210
B2-D0 33.8400 33.8430 32.6000 32.6000
B2-J3 137.6210 137.6220 41.2680 41.2930
D0-J3 104.2940 104.2910 44.0760 44.0980
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 59522.2756753741
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227324
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 120.827
HIERARCH ESO ISS PBL12 END 120.784
HIERARCH ESO ISS PBLA12 START 243.6
HIERARCH ESO ISS PBLA12 END 243.6
HIERARCH ESO ISS PBL13 START 93.477
HIERARCH ESO ISS PBL13 END 93.424
HIERARCH ESO ISS PBLA13 START 254.4
HIERARCH ESO ISS PBLA13 END 254.4
HIERARCH ESO ISS PBL14 START 52.755
HIERARCH ESO ISS PBL14 END 52.738
HIERARCH ESO ISS PBLA14 START 340.644
HIERARCH ESO ISS PBLA14 END 340.721
HIERARCH ESO ISS PBL23 START 33.84
HIERARCH ESO ISS PBL23 END 33.843
HIERARCH ESO ISS PBLA23 START 32.6
HIERARCH ESO ISS PBLA23 END 32.6
HIERARCH ESO ISS PBL24 START 137.621
HIERARCH ESO ISS PBL24 END 137.622
HIERARCH ESO ISS PBLA24 START 41.268
HIERARCH ESO ISS PBLA24 END 41.293
HIERARCH ESO ISS PBL34 START 104.294
HIERARCH ESO ISS PBL34 END 104.291
HIERARCH ESO ISS PBLA34 START 44.076
HIERARCH ESO ISS PBLA34 END 44.098
HIERARCH ESO ISS AMBI TAU0 START 0.007841
HIERARCH ESO ISS AMBI TAU0 END 0.007841
HIERARCH ESO ISS AMBI TEMP 11.15
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.33