Exposure
ID
PIONI.2021-11-07T05:51:58.646_1
Header ID
PIONI.2021-11-07T05:51:58.646
Date updated
2021-11-07 06:00:43 UTC+0000
Release date
2022-11-07 06:00:42 UTC+0000
UTC Start
2021-11-07 05:51:58.646
UTC End
2021-11-07 05:52:24.246
MJD Start
59525.2444287697
MJD End
59525.244725066
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003813
Ambient temperature (°C)
12.19
Seeing (arcsec)
0.82
Observation
ID
48772
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
36529
Name
eps Eri
RA
53.227885
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 67.0900 67.0560 273.3000 273.4000
K0-D0 95.5810 95.5590 253.4000 253.4000
K0-J3 53.7510 53.7330 336.5430 336.6120
G2-D0 39.7520 39.7590 218.3000 218.3000
G2-J3 64.3460 64.3540 45.1040 45.1360
D0-J3 103.9230 103.9380 42.4920 42.5260
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 59525.2444287697
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227885
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
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 67.09
HIERARCH ESO ISS PBL12 END 67.056
HIERARCH ESO ISS PBLA12 START 273.3
HIERARCH ESO ISS PBLA12 END 273.4
HIERARCH ESO ISS PBL13 START 95.581
HIERARCH ESO ISS PBL13 END 95.559
HIERARCH ESO ISS PBLA13 START 253.4
HIERARCH ESO ISS PBLA13 END 253.4
HIERARCH ESO ISS PBL14 START 53.751
HIERARCH ESO ISS PBL14 END 53.733
HIERARCH ESO ISS PBLA14 START 336.543
HIERARCH ESO ISS PBLA14 END 336.612
HIERARCH ESO ISS PBL23 START 39.752
HIERARCH ESO ISS PBL23 END 39.759
HIERARCH ESO ISS PBLA23 START 218.3
HIERARCH ESO ISS PBLA23 END 218.3
HIERARCH ESO ISS PBL24 START 64.346
HIERARCH ESO ISS PBL24 END 64.354
HIERARCH ESO ISS PBLA24 START 45.104
HIERARCH ESO ISS PBLA24 END 45.136
HIERARCH ESO ISS PBL34 START 103.923
HIERARCH ESO ISS PBL34 END 103.938
HIERARCH ESO ISS PBLA34 START 42.492
HIERARCH ESO ISS PBLA34 END 42.526
HIERARCH ESO ISS AMBI TAU0 START 0.003813
HIERARCH ESO ISS AMBI TAU0 END 0.003813
HIERARCH ESO ISS AMBI TEMP 12.19
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 0.82