Exposure
ID
PIONI.2021-11-08T06:27:31.798_1
Header ID
PIONI.2021-11-08T06:27:31.798
Date updated
2021-11-08 06:31:14 UTC+0000
Release date
2022-11-08 06:31:13 UTC+0000
UTC Start
2021-11-08 06:27:31.798
UTC End
2021-11-08 06:27:57.398
MJD Start
59526.2691180278
MJD End
59526.2694143241
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.007173
Ambient temperature (°C)
12.73
Seeing (arcsec)
0.57
Observation
ID
48812
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
36560
Name
eps Eri
RA
53.227322
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 82.2870 82.2030 121.3000 121.4000
A0-J2 120.6120 120.4920 96.4000 96.5000
A0-J3 131.9290 131.9050 51.0990 51.1150
G1-J2 57.5710 57.5520 59.4000 59.5000
G1-J3 129.7710 129.7880 14.4540 14.5080
J2-J3 97.9130 97.8970 349.8910 349.9680
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 59526.2691180278
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227322
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 82.287
HIERARCH ESO ISS PBL12 END 82.203
HIERARCH ESO ISS PBLA12 START 121.3
HIERARCH ESO ISS PBLA12 END 121.4
HIERARCH ESO ISS PBL13 START 120.612
HIERARCH ESO ISS PBL13 END 120.492
HIERARCH ESO ISS PBLA13 START 96.4
HIERARCH ESO ISS PBLA13 END 96.5
HIERARCH ESO ISS PBL14 START 131.929
HIERARCH ESO ISS PBL14 END 131.905
HIERARCH ESO ISS PBLA14 START 51.099
HIERARCH ESO ISS PBLA14 END 51.115
HIERARCH ESO ISS PBL23 START 57.571
HIERARCH ESO ISS PBL23 END 57.552
HIERARCH ESO ISS PBLA23 START 59.4
HIERARCH ESO ISS PBLA23 END 59.5
HIERARCH ESO ISS PBL24 START 129.771
HIERARCH ESO ISS PBL24 END 129.788
HIERARCH ESO ISS PBLA24 START 14.454
HIERARCH ESO ISS PBLA24 END 14.508
HIERARCH ESO ISS PBL34 START 97.913
HIERARCH ESO ISS PBL34 END 97.897
HIERARCH ESO ISS PBLA34 START 349.891
HIERARCH ESO ISS PBLA34 END 349.968
HIERARCH ESO ISS AMBI TAU0 START 0.007173
HIERARCH ESO ISS AMBI TAU0 END 0.007173
HIERARCH ESO ISS AMBI TEMP 12.73
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57