Exposure
ID
PIONI.2021-11-09T06:08:52.438_1
Header ID
PIONI.2021-11-09T06:08:52.438
Date updated
2021-11-09 06:15:39 UTC+0000
Release date
2022-11-09 06:15:39 UTC+0000
UTC Start
2021-11-09 06:08:52.439
UTC End
2021-11-09 06:09:18.039
MJD Start
59527.2561624846
MJD End
59527.2564587809
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003898
Ambient temperature (°C)
11.78
Seeing (arcsec)
0.75
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 84.2230 84.1490 120.0000 120.0000
A0-J2 123.3020 123.2020 95.7000 95.7000
A0-J3 132.3300 132.3200 50.6370 50.6580
G1-J2 57.9620 57.9490 59.1000 59.1000
G1-J3 129.3580 129.3750 13.1070 13.1630
J2-J3 98.3320 98.3140 348.0350 348.1090
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 59527.2561624846
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 84.223
HIERARCH ESO ISS PBL12 END 84.149
HIERARCH ESO ISS PBLA12 START 120.0
HIERARCH ESO ISS PBLA12 END 120.0
HIERARCH ESO ISS PBL13 START 123.302
HIERARCH ESO ISS PBL13 END 123.202
HIERARCH ESO ISS PBLA13 START 95.7
HIERARCH ESO ISS PBLA13 END 95.7
HIERARCH ESO ISS PBL14 START 132.33
HIERARCH ESO ISS PBL14 END 132.32
HIERARCH ESO ISS PBLA14 START 50.637
HIERARCH ESO ISS PBLA14 END 50.658
HIERARCH ESO ISS PBL23 START 57.962
HIERARCH ESO ISS PBL23 END 57.949
HIERARCH ESO ISS PBLA23 START 59.1
HIERARCH ESO ISS PBLA23 END 59.1
HIERARCH ESO ISS PBL24 START 129.358
HIERARCH ESO ISS PBL24 END 129.375
HIERARCH ESO ISS PBLA24 START 13.107
HIERARCH ESO ISS PBLA24 END 13.163
HIERARCH ESO ISS PBL34 START 98.332
HIERARCH ESO ISS PBL34 END 98.314
HIERARCH ESO ISS PBLA34 START 348.035
HIERARCH ESO ISS PBLA34 END 348.109
HIERARCH ESO ISS AMBI TAU0 START 0.003898
HIERARCH ESO ISS AMBI TAU0 END 0.003898
HIERARCH ESO ISS AMBI TEMP 11.78
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.75