Exposure
ID
PIONI.2021-11-05T06:11:32.193_1
Header ID
PIONI.2021-11-05T06:11:32.193
Date updated
2021-11-05 06:16:04 UTC+0000
Release date
2022-11-05 06:16:04 UTC+0000
UTC Start
2021-11-05 06:11:32.192
UTC End
2021-11-05 06:11:57.792
MJD Start
59523.2580114859
MJD End
59523.2583077822
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005522
Ambient temperature (°C)
10.54
Seeing (arcsec)
0.5
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 122.0060 121.9850 243.0000 243.0000
K0-D0 95.0460 95.0120 253.8000 253.8000
K0-J3 53.3970 53.3790 337.9300 338.0030
B2-D0 33.6750 33.6810 31.3000 31.3000
B2-J3 137.2970 137.3130 40.2300 40.2620
D0-J3 104.1670 104.1760 43.1200 43.1500
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 59523.2580114859
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 122.006
HIERARCH ESO ISS PBL12 END 121.985
HIERARCH ESO ISS PBLA12 START 243.0
HIERARCH ESO ISS PBLA12 END 243.0
HIERARCH ESO ISS PBL13 START 95.046
HIERARCH ESO ISS PBL13 END 95.012
HIERARCH ESO ISS PBLA13 START 253.8
HIERARCH ESO ISS PBLA13 END 253.8
HIERARCH ESO ISS PBL14 START 53.397
HIERARCH ESO ISS PBL14 END 53.379
HIERARCH ESO ISS PBLA14 START 337.93
HIERARCH ESO ISS PBLA14 END 338.003
HIERARCH ESO ISS PBL23 START 33.675
HIERARCH ESO ISS PBL23 END 33.681
HIERARCH ESO ISS PBLA23 START 31.3
HIERARCH ESO ISS PBLA23 END 31.3
HIERARCH ESO ISS PBL24 START 137.297
HIERARCH ESO ISS PBL24 END 137.313
HIERARCH ESO ISS PBLA24 START 40.23
HIERARCH ESO ISS PBLA24 END 40.262
HIERARCH ESO ISS PBL34 START 104.167
HIERARCH ESO ISS PBL34 END 104.176
HIERARCH ESO ISS PBLA34 START 43.12
HIERARCH ESO ISS PBLA34 END 43.15
HIERARCH ESO ISS AMBI TAU0 START 0.005522
HIERARCH ESO ISS AMBI TAU0 END 0.005522
HIERARCH ESO ISS AMBI TEMP 10.54
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.5