Exposure
ID
PIONI.2021-11-05T07:28:38.225_1
Header ID
PIONI.2021-11-05T07:28:38.225
Date updated
2021-11-05 07:35:58 UTC+0000
Release date
2021-11-05 07:28:38 UTC+0000
UTC Start
2021-11-05 07:28:38.225
UTC End
2021-11-05 07:29:03.825
MJD Start
59523.3115535295
MJD End
59523.3118498258
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003312
Ambient temperature (°C)
10.79
Seeing (arcsec)
0.89
Observation
ID
48757
Category
calibrator
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
36517
Name
bet Eri
RA
76.961475
DEC
-5.08681
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 122.3030 122.3100 242.4000 242.4000
K0-D0 95.8820 95.8710 253.0000 253.0000
K0-J3 52.6300 52.6080 335.2420 335.3080
B2-D0 33.0590 33.0690 30.4000 30.5000
B2-J3 135.5000 135.5400 39.6020 39.6360
D0-J3 102.9990 103.0280 42.5360 42.5670
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59523.3115535295
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.961475
DEC -5.08681
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 122.303
HIERARCH ESO ISS PBL12 END 122.31
HIERARCH ESO ISS PBLA12 START 242.4
HIERARCH ESO ISS PBLA12 END 242.4
HIERARCH ESO ISS PBL13 START 95.882
HIERARCH ESO ISS PBL13 END 95.871
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 52.63
HIERARCH ESO ISS PBL14 END 52.608
HIERARCH ESO ISS PBLA14 START 335.242
HIERARCH ESO ISS PBLA14 END 335.308
HIERARCH ESO ISS PBL23 START 33.059
HIERARCH ESO ISS PBL23 END 33.069
HIERARCH ESO ISS PBLA23 START 30.4
HIERARCH ESO ISS PBLA23 END 30.5
HIERARCH ESO ISS PBL24 START 135.5
HIERARCH ESO ISS PBL24 END 135.54
HIERARCH ESO ISS PBLA24 START 39.602
HIERARCH ESO ISS PBLA24 END 39.636
HIERARCH ESO ISS PBL34 START 102.999
HIERARCH ESO ISS PBL34 END 103.028
HIERARCH ESO ISS PBLA34 START 42.536
HIERARCH ESO ISS PBLA34 END 42.567
HIERARCH ESO ISS AMBI TAU0 START 0.003312
HIERARCH ESO ISS AMBI TAU0 END 0.003312
HIERARCH ESO ISS AMBI TEMP 10.79
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89