Exposure
ID
PIONI.2021-11-04T05:22:11.007_1
Header ID
PIONI.2021-11-04T05:22:11.007
Date updated
2021-11-04 05:30:54 UTC+0000
Release date
2022-11-04 05:30:54 UTC+0000
UTC Start
2021-11-04 05:22:11.007
UTC End
2021-11-04 05:22:36.607
MJD Start
59522.2237385125
MJD End
59522.2240348088
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006836
Ambient temperature (°C)
10.57
Seeing (arcsec)
0.43
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 121.3480 121.3830 240.7000 240.7000
K0-D0 95.6690 95.6880 251.7000 251.7000
K0-J3 54.9580 54.9420 332.1970 332.2540
B2-D0 32.9940 33.0030 27.0000 27.0000
B2-J3 134.5340 134.5790 36.5760 36.6260
D0-J3 102.1510 102.1860 39.6660 39.7140
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 59522.2237385125
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 121.348
HIERARCH ESO ISS PBL12 END 121.383
HIERARCH ESO ISS PBLA12 START 240.7
HIERARCH ESO ISS PBLA12 END 240.7
HIERARCH ESO ISS PBL13 START 95.669
HIERARCH ESO ISS PBL13 END 95.688
HIERARCH ESO ISS PBLA13 START 251.7
HIERARCH ESO ISS PBLA13 END 251.7
HIERARCH ESO ISS PBL14 START 54.958
HIERARCH ESO ISS PBL14 END 54.942
HIERARCH ESO ISS PBLA14 START 332.197
HIERARCH ESO ISS PBLA14 END 332.254
HIERARCH ESO ISS PBL23 START 32.994
HIERARCH ESO ISS PBL23 END 33.003
HIERARCH ESO ISS PBLA23 START 27.0
HIERARCH ESO ISS PBLA23 END 27.0
HIERARCH ESO ISS PBL24 START 134.534
HIERARCH ESO ISS PBL24 END 134.579
HIERARCH ESO ISS PBLA24 START 36.576
HIERARCH ESO ISS PBLA24 END 36.626
HIERARCH ESO ISS PBL34 START 102.151
HIERARCH ESO ISS PBL34 END 102.186
HIERARCH ESO ISS PBLA34 START 39.666
HIERARCH ESO ISS PBLA34 END 39.714
HIERARCH ESO ISS AMBI TAU0 START 0.006836
HIERARCH ESO ISS AMBI TAU0 END 0.006836
HIERARCH ESO ISS AMBI TEMP 10.57
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.43