Exposure
ID
PIONI.2021-11-11T05:41:32.405_1
Header ID
PIONI.2021-11-11T05:41:32.405
Date updated
2021-11-11 05:51:24 UTC+0000
Release date
2022-11-11 05:51:24 UTC+0000
UTC Start
2021-11-11 05:41:32.405
UTC End
2021-11-11 05:41:58.005
MJD Start
59529.2371806088
MJD End
59529.2374769051
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003451
Ambient temperature (°C)
11.11
Seeing (arcsec)
0.81
Observation
ID
48840
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
36577
Name
eps Eri
RA
53.22732
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.4290 86.3670 118.3000 118.4000
A0-J2 126.1090 126.0350 94.8000 94.8000
A0-J3 132.3700 132.3770 49.8500 49.8770
G1-J2 58.2120 58.2090 58.4000 58.4000
G1-J3 128.8370 128.8520 11.2330 11.2920
J2-J3 98.9610 98.9410 345.6690 345.7400
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 59529.2371806088
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.22732
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 G1
HIERARCH ESO ISS CONF STATION3 J2
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 86.429
HIERARCH ESO ISS PBL12 END 86.367
HIERARCH ESO ISS PBLA12 START 118.3
HIERARCH ESO ISS PBLA12 END 118.4
HIERARCH ESO ISS PBL13 START 126.109
HIERARCH ESO ISS PBL13 END 126.035
HIERARCH ESO ISS PBLA13 START 94.8
HIERARCH ESO ISS PBLA13 END 94.8
HIERARCH ESO ISS PBL14 START 132.37
HIERARCH ESO ISS PBL14 END 132.377
HIERARCH ESO ISS PBLA14 START 49.85
HIERARCH ESO ISS PBLA14 END 49.877
HIERARCH ESO ISS PBL23 START 58.212
HIERARCH ESO ISS PBL23 END 58.209
HIERARCH ESO ISS PBLA23 START 58.4
HIERARCH ESO ISS PBLA23 END 58.4
HIERARCH ESO ISS PBL24 START 128.837
HIERARCH ESO ISS PBL24 END 128.852
HIERARCH ESO ISS PBLA24 START 11.233
HIERARCH ESO ISS PBLA24 END 11.292
HIERARCH ESO ISS PBL34 START 98.961
HIERARCH ESO ISS PBL34 END 98.941
HIERARCH ESO ISS PBLA34 START 345.669
HIERARCH ESO ISS PBLA34 END 345.74
HIERARCH ESO ISS AMBI TAU0 START 0.003451
HIERARCH ESO ISS AMBI TAU0 END 0.003451
HIERARCH ESO ISS AMBI TEMP 11.11
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.81