Exposure
ID
PIONI.2021-11-10T05:25:19.511_1
Header ID
PIONI.2021-11-10T05:25:19.511
Date updated
2021-11-10 05:30:51 UTC+0000
Release date
2022-11-10 05:30:51 UTC+0000
UTC Start
2021-11-10 05:25:19.511
UTC End
2021-11-10 05:25:45.111
MJD Start
59528.2259202669
MJD End
59528.2262165632
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002972
Ambient temperature (°C)
9.54
Seeing (arcsec)
0.66
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 88.2400 88.1940 116.9000 116.9000
A0-J2 128.0820 128.0370 93.9000 93.9000
A0-J3 131.8390 131.8630 48.8340 48.8670
G1-J2 58.1570 58.1630 57.6000 57.6000
G1-J3 128.3500 128.3630 9.2110 9.2730
J2-J3 99.6760 99.6540 343.3620 343.4290
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 59528.2259202669
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 88.24
HIERARCH ESO ISS PBL12 END 88.194
HIERARCH ESO ISS PBLA12 START 116.9
HIERARCH ESO ISS PBLA12 END 116.9
HIERARCH ESO ISS PBL13 START 128.082
HIERARCH ESO ISS PBL13 END 128.037
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 131.839
HIERARCH ESO ISS PBL14 END 131.863
HIERARCH ESO ISS PBLA14 START 48.834
HIERARCH ESO ISS PBLA14 END 48.867
HIERARCH ESO ISS PBL23 START 58.157
HIERARCH ESO ISS PBL23 END 58.163
HIERARCH ESO ISS PBLA23 START 57.6
HIERARCH ESO ISS PBLA23 END 57.6
HIERARCH ESO ISS PBL24 START 128.35
HIERARCH ESO ISS PBL24 END 128.363
HIERARCH ESO ISS PBLA24 START 9.211
HIERARCH ESO ISS PBLA24 END 9.273
HIERARCH ESO ISS PBL34 START 99.676
HIERARCH ESO ISS PBL34 END 99.654
HIERARCH ESO ISS PBLA34 START 343.362
HIERARCH ESO ISS PBLA34 END 343.429
HIERARCH ESO ISS AMBI TAU0 START 0.002972
HIERARCH ESO ISS AMBI TAU0 END 0.002972
HIERARCH ESO ISS AMBI TEMP 9.54
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.66