Exposure
ID
PIONI.2021-11-07T06:38:47.456_1
Header ID
PIONI.2021-11-07T06:38:47.456
Date updated
2021-11-07 06:46:03 UTC+0000
Release date
2022-11-07 06:46:03 UTC+0000
UTC Start
2021-11-07 06:38:47.457
UTC End
2021-11-07 06:39:13.057
MJD Start
59525.2769381548
MJD End
59525.2772344511
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006339
Ambient temperature (°C)
12.03
Seeing (arcsec)
0.73
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 63.1210 63.0530 275.5000 275.6000
K0-D0 92.0980 92.0300 254.7000 254.7000
K0-J3 52.3670 52.3500 342.4660 342.5490
G2-D0 39.9790 39.9780 220.6000 220.6000
G2-J3 64.3260 64.3170 47.0130 47.0300
D0-J3 104.1500 104.1400 44.5500 44.5680
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 59525.2769381548
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 63.121
HIERARCH ESO ISS PBL12 END 63.053
HIERARCH ESO ISS PBLA12 START 275.5
HIERARCH ESO ISS PBLA12 END 275.6
HIERARCH ESO ISS PBL13 START 92.098
HIERARCH ESO ISS PBL13 END 92.03
HIERARCH ESO ISS PBLA13 START 254.7
HIERARCH ESO ISS PBLA13 END 254.7
HIERARCH ESO ISS PBL14 START 52.367
HIERARCH ESO ISS PBL14 END 52.35
HIERARCH ESO ISS PBLA14 START 342.466
HIERARCH ESO ISS PBLA14 END 342.549
HIERARCH ESO ISS PBL23 START 39.979
HIERARCH ESO ISS PBL23 END 39.978
HIERARCH ESO ISS PBLA23 START 220.6
HIERARCH ESO ISS PBLA23 END 220.6
HIERARCH ESO ISS PBL24 START 64.326
HIERARCH ESO ISS PBL24 END 64.317
HIERARCH ESO ISS PBLA24 START 47.013
HIERARCH ESO ISS PBLA24 END 47.03
HIERARCH ESO ISS PBL34 START 104.15
HIERARCH ESO ISS PBL34 END 104.14
HIERARCH ESO ISS PBLA34 START 44.55
HIERARCH ESO ISS PBLA34 END 44.568
HIERARCH ESO ISS AMBI TAU0 START 0.006339
HIERARCH ESO ISS AMBI TAU0 END 0.006339
HIERARCH ESO ISS AMBI TEMP 12.03
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.73