Exposure
ID
PIONI.2021-11-05T05:48:15.532_1
Header ID
PIONI.2021-11-05T05:48:15.532
Date updated
2021-11-05 05:56:39 UTC+0000
Release date
2022-11-05 05:56:39 UTC+0000
UTC Start
2021-11-05 05:48:15.531
UTC End
2021-11-05 05:48:41.131
MJD Start
59523.2418464287
MJD End
59523.242142725
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004957
Ambient temperature (°C)
11.09
Seeing (arcsec)
0.415
Observation
ID
48754
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
36515
Name
eps Eri
RA
53.227323
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 122.3370 122.3400 242.2000 242.2000
K0-D0 95.8880 95.8780 253.0000 253.0000
K0-J3 54.1000 54.0820 335.2470 335.3130
B2-D0 33.4180 33.4260 29.6000 29.6000
B2-J3 136.4090 136.4380 38.8260 38.8660
D0-J3 103.5670 103.5880 41.8050 41.8430
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 59523.2418464287
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227323
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 B2
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 122.337
HIERARCH ESO ISS PBL12 END 122.34
HIERARCH ESO ISS PBLA12 START 242.2
HIERARCH ESO ISS PBLA12 END 242.2
HIERARCH ESO ISS PBL13 START 95.888
HIERARCH ESO ISS PBL13 END 95.878
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 54.1
HIERARCH ESO ISS PBL14 END 54.082
HIERARCH ESO ISS PBLA14 START 335.247
HIERARCH ESO ISS PBLA14 END 335.313
HIERARCH ESO ISS PBL23 START 33.418
HIERARCH ESO ISS PBL23 END 33.426
HIERARCH ESO ISS PBLA23 START 29.6
HIERARCH ESO ISS PBLA23 END 29.6
HIERARCH ESO ISS PBL24 START 136.409
HIERARCH ESO ISS PBL24 END 136.438
HIERARCH ESO ISS PBLA24 START 38.826
HIERARCH ESO ISS PBLA24 END 38.866
HIERARCH ESO ISS PBL34 START 103.567
HIERARCH ESO ISS PBL34 END 103.588
HIERARCH ESO ISS PBLA34 START 41.805
HIERARCH ESO ISS PBLA34 END 41.843
HIERARCH ESO ISS AMBI TAU0 START 0.005621
HIERARCH ESO ISS AMBI TAU0 END 0.004293
HIERARCH ESO ISS AMBI TEMP 11.09
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.44