Exposure
ID
PIONI.2021-11-02T03:45:10.691_1
Header ID
PIONI.2021-11-02T03:45:10.691
Date updated
2021-11-02 03:51:18 UTC+0000
Release date
2022-11-02 03:51:17 UTC+0000
UTC Start
2021-11-02 03:45:10.691
UTC End
2021-11-02 03:45:36.291
MJD Start
59520.1563737439
MJD End
59520.1566700402
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.65
Seeing (arcsec)
0.9
Observation
ID
48709
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
36480
Name
eps Eri
RA
53.226763
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 25.2040 25.2080 136.1000 136.1000
A0-D0 28.0720 28.1080 64.4000 64.5000
A0-C1 21.6470 21.6630 111.8630 111.8700
B2-D0 31.2700 31.2780 14.5000 14.6000
B2-C1 10.4170 10.4200 14.4470 14.5320
D0-C1 20.8520 20.8580 194.5120 194.5970
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 59520.1563737439
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226763
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 25.204
HIERARCH ESO ISS PBL12 END 25.208
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 28.072
HIERARCH ESO ISS PBL13 END 28.108
HIERARCH ESO ISS PBLA13 START 64.4
HIERARCH ESO ISS PBLA13 END 64.5
HIERARCH ESO ISS PBL14 START 21.647
HIERARCH ESO ISS PBL14 END 21.663
HIERARCH ESO ISS PBLA14 START 111.863
HIERARCH ESO ISS PBLA14 END 111.87
HIERARCH ESO ISS PBL23 START 31.27
HIERARCH ESO ISS PBL23 END 31.278
HIERARCH ESO ISS PBLA23 START 14.5
HIERARCH ESO ISS PBLA23 END 14.6
HIERARCH ESO ISS PBL24 START 10.417
HIERARCH ESO ISS PBL24 END 10.42
HIERARCH ESO ISS PBLA24 START 14.447
HIERARCH ESO ISS PBLA24 END 14.532
HIERARCH ESO ISS PBL34 START 20.852
HIERARCH ESO ISS PBL34 END 20.858
HIERARCH ESO ISS PBLA34 START 194.512
HIERARCH ESO ISS PBLA34 END 194.597
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.65
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9