Exposure
ID
PIONI.2021-11-02T03:44:32.414_1
Header ID
PIONI.2021-11-02T03:44:32.414
Date updated
2021-11-02 03:51:18 UTC+0000
Release date
2022-11-02 03:51:17 UTC+0000
UTC Start
2021-11-02 03:44:32.414
UTC End
2021-11-02 03:44:58.014
MJD Start
59520.1559307198
MJD End
59520.1562270161
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.65
Seeing (arcsec)
0.9
Observation
ID
48709
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
36480
Name
eps Eri
RA
53.226763
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.2000 25.2040 136.0000 136.1000
A0-D0 28.0340 28.0700 64.3000 64.4000
A0-C1 21.6300 21.6460 111.8550 111.8620
B2-D0 31.2610 31.2690 14.4000 14.5000
B2-C1 10.4140 10.4170 14.3580 14.4430
D0-C1 20.8460 20.8520 194.4220 194.5070
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 59520.1559307198
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226763
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.2
HIERARCH ESO ISS PBL12 END 25.204
HIERARCH ESO ISS PBLA12 START 136.0
HIERARCH ESO ISS PBLA12 END 136.1
HIERARCH ESO ISS PBL13 START 28.034
HIERARCH ESO ISS PBL13 END 28.07
HIERARCH ESO ISS PBLA13 START 64.3
HIERARCH ESO ISS PBLA13 END 64.4
HIERARCH ESO ISS PBL14 START 21.63
HIERARCH ESO ISS PBL14 END 21.646
HIERARCH ESO ISS PBLA14 START 111.855
HIERARCH ESO ISS PBLA14 END 111.862
HIERARCH ESO ISS PBL23 START 31.261
HIERARCH ESO ISS PBL23 END 31.269
HIERARCH ESO ISS PBLA23 START 14.4
HIERARCH ESO ISS PBLA23 END 14.5
HIERARCH ESO ISS PBL24 START 10.414
HIERARCH ESO ISS PBL24 END 10.417
HIERARCH ESO ISS PBLA24 START 14.358
HIERARCH ESO ISS PBLA24 END 14.443
HIERARCH ESO ISS PBL34 START 20.846
HIERARCH ESO ISS PBL34 END 20.852
HIERARCH ESO ISS PBLA34 START 194.422
HIERARCH ESO ISS PBLA34 END 194.507
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.65
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9