Exposure
ID
PIONI.2021-11-02T05:45:04.003_1
Header ID
PIONI.2021-11-02T05:45:04.003
Date updated
2021-11-02 05:51:26 UTC+0000
Release date
2022-11-02 05:51:26 UTC+0000
UTC Start
2021-11-02 05:45:04.003
UTC End
2021-11-02 05:45:29.603
MJD Start
59520.2396296677
MJD End
59520.239925964
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002834
Ambient temperature (°C)
11.34
Seeing (arcsec)
0.875
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 24.4900 24.4800 143.0000 143.1000
A0-D0 31.9990 32.0000 72.4000 72.4000
A0-C1 22.2610 22.2520 116.1570 116.1940
B2-D0 33.2180 33.2260 28.3000 28.4000
B2-C1 11.0650 11.0680 28.2750 28.3270
D0-C1 22.1530 22.1580 208.3390 208.3900
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 59520.2396296677
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 24.49
HIERARCH ESO ISS PBL12 END 24.48
HIERARCH ESO ISS PBLA12 START 143.0
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 31.999
HIERARCH ESO ISS PBL13 END 32.0
HIERARCH ESO ISS PBLA13 START 72.4
HIERARCH ESO ISS PBLA13 END 72.4
HIERARCH ESO ISS PBL14 START 22.261
HIERARCH ESO ISS PBL14 END 22.252
HIERARCH ESO ISS PBLA14 START 116.157
HIERARCH ESO ISS PBLA14 END 116.194
HIERARCH ESO ISS PBL23 START 33.218
HIERARCH ESO ISS PBL23 END 33.226
HIERARCH ESO ISS PBLA23 START 28.3
HIERARCH ESO ISS PBLA23 END 28.4
HIERARCH ESO ISS PBL24 START 11.065
HIERARCH ESO ISS PBL24 END 11.068
HIERARCH ESO ISS PBLA24 START 28.275
HIERARCH ESO ISS PBLA24 END 28.327
HIERARCH ESO ISS PBL34 START 22.153
HIERARCH ESO ISS PBL34 END 22.158
HIERARCH ESO ISS PBLA34 START 208.339
HIERARCH ESO ISS PBLA34 END 208.39
HIERARCH ESO ISS AMBI TAU0 START 0.002902
HIERARCH ESO ISS AMBI TAU0 END 0.002766
HIERARCH ESO ISS AMBI TEMP 11.34
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.92