Exposure
ID
PIONI.2021-11-09T06:28:37.387_1
Header ID
PIONI.2021-11-09T06:28:37.387
Date updated
2021-11-09 06:35:58 UTC+0000
Release date
2022-11-09 06:35:58 UTC+0000
UTC Start
2021-11-09 06:28:37.387
UTC End
2021-11-09 06:29:02.987
MJD Start
59527.2698771688
MJD End
59527.2701734651
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003446
Ambient temperature (°C)
11.82
Seeing (arcsec)
0.74
Observation
ID
48833
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
36571
Name
eps Eri
RA
53.227321
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 81.5760 81.4920 121.9000 121.9000
A0-J2 119.5840 119.4610 96.7000 96.7000
A0-J3 131.7170 131.6900 51.2290 51.2430
G1-J2 57.3980 57.3770 59.5000 59.6000
G1-J3 129.9140 129.9310 14.8990 14.9510
J2-J3 97.7830 97.7680 350.5360 350.6140
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 59527.2698771688
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227321
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 81.576
HIERARCH ESO ISS PBL12 END 81.492
HIERARCH ESO ISS PBLA12 START 121.9
HIERARCH ESO ISS PBLA12 END 121.9
HIERARCH ESO ISS PBL13 START 119.584
HIERARCH ESO ISS PBL13 END 119.461
HIERARCH ESO ISS PBLA13 START 96.7
HIERARCH ESO ISS PBLA13 END 96.7
HIERARCH ESO ISS PBL14 START 131.717
HIERARCH ESO ISS PBL14 END 131.69
HIERARCH ESO ISS PBLA14 START 51.229
HIERARCH ESO ISS PBLA14 END 51.243
HIERARCH ESO ISS PBL23 START 57.398
HIERARCH ESO ISS PBL23 END 57.377
HIERARCH ESO ISS PBLA23 START 59.5
HIERARCH ESO ISS PBLA23 END 59.6
HIERARCH ESO ISS PBL24 START 129.914
HIERARCH ESO ISS PBL24 END 129.931
HIERARCH ESO ISS PBLA24 START 14.899
HIERARCH ESO ISS PBLA24 END 14.951
HIERARCH ESO ISS PBL34 START 97.783
HIERARCH ESO ISS PBL34 END 97.768
HIERARCH ESO ISS PBLA34 START 350.536
HIERARCH ESO ISS PBLA34 END 350.614
HIERARCH ESO ISS AMBI TAU0 START 0.003446
HIERARCH ESO ISS AMBI TAU0 END 0.003446
HIERARCH ESO ISS AMBI TEMP 11.82
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.74