Exposure
ID
PIONI.2021-11-09T05:21:51.169_1
Header ID
PIONI.2021-11-09T05:21:51.169
Date updated
2021-11-09 05:25:39 UTC+0000
Release date
2022-11-09 05:25:38 UTC+0000
UTC Start
2021-11-09 05:21:51.169
UTC End
2021-11-09 05:22:16.769
MJD Start
59527.2235088986
MJD End
59527.2238051949
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004568
Ambient temperature (°C)
11.89
Seeing (arcsec)
0.53
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 88.7790 88.7380 116.4000 116.5000
A0-J2 128.5660 128.5310 93.6000 93.6000
A0-J3 131.5050 131.5350 48.4030 48.4390
G1-J2 58.0580 58.0670 57.2000 57.2000
G1-J3 128.1890 128.2020 8.4460 8.5080
J2-J3 99.9490 99.9270 342.5490 342.6140
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 59527.2235088986
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 88.779
HIERARCH ESO ISS PBL12 END 88.738
HIERARCH ESO ISS PBLA12 START 116.4
HIERARCH ESO ISS PBLA12 END 116.5
HIERARCH ESO ISS PBL13 START 128.566
HIERARCH ESO ISS PBL13 END 128.531
HIERARCH ESO ISS PBLA13 START 93.6
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 131.505
HIERARCH ESO ISS PBL14 END 131.535
HIERARCH ESO ISS PBLA14 START 48.403
HIERARCH ESO ISS PBLA14 END 48.439
HIERARCH ESO ISS PBL23 START 58.058
HIERARCH ESO ISS PBL23 END 58.067
HIERARCH ESO ISS PBLA23 START 57.2
HIERARCH ESO ISS PBLA23 END 57.2
HIERARCH ESO ISS PBL24 START 128.189
HIERARCH ESO ISS PBL24 END 128.202
HIERARCH ESO ISS PBLA24 START 8.446
HIERARCH ESO ISS PBLA24 END 8.508
HIERARCH ESO ISS PBL34 START 99.949
HIERARCH ESO ISS PBL34 END 99.927
HIERARCH ESO ISS PBLA34 START 342.549
HIERARCH ESO ISS PBLA34 END 342.614
HIERARCH ESO ISS AMBI TAU0 START 0.004568
HIERARCH ESO ISS AMBI TAU0 END 0.004568
HIERARCH ESO ISS AMBI TEMP 11.89
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.53