Exposure
ID
PIONI.2021-11-05T05:48:53.691_1
Header ID
PIONI.2021-11-05T05:48:53.691
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 05:48:53.691
UTC End
2021-11-05 05:49:19.291
MJD Start
59523.2422880903
MJD End
59523.2425843866
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004293
Ambient temperature (°C)
11.09
Seeing (arcsec)
0.44
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 122.3410 122.3440 242.2000 242.2000
K0-D0 95.8770 95.8660 253.0000 253.0000
K0-J3 54.0810 54.0630 335.3170 335.3830
B2-D0 33.4260 33.4340 29.6000 29.7000
B2-J3 136.4400 136.4690 38.8680 38.9080
D0-J3 103.5890 103.6100 41.8450 41.8830
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 59523.2422880903
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 122.341
HIERARCH ESO ISS PBL12 END 122.344
HIERARCH ESO ISS PBLA12 START 242.2
HIERARCH ESO ISS PBLA12 END 242.2
HIERARCH ESO ISS PBL13 START 95.877
HIERARCH ESO ISS PBL13 END 95.866
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 54.081
HIERARCH ESO ISS PBL14 END 54.063
HIERARCH ESO ISS PBLA14 START 335.317
HIERARCH ESO ISS PBLA14 END 335.383
HIERARCH ESO ISS PBL23 START 33.426
HIERARCH ESO ISS PBL23 END 33.434
HIERARCH ESO ISS PBLA23 START 29.6
HIERARCH ESO ISS PBLA23 END 29.7
HIERARCH ESO ISS PBL24 START 136.44
HIERARCH ESO ISS PBL24 END 136.469
HIERARCH ESO ISS PBLA24 START 38.868
HIERARCH ESO ISS PBLA24 END 38.908
HIERARCH ESO ISS PBL34 START 103.589
HIERARCH ESO ISS PBL34 END 103.61
HIERARCH ESO ISS PBLA34 START 41.845
HIERARCH ESO ISS PBLA34 END 41.883
HIERARCH ESO ISS AMBI TAU0 START 0.004293
HIERARCH ESO ISS AMBI TAU0 END 0.004293
HIERARCH ESO ISS AMBI TEMP 11.09
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.44