Exposure
ID
PIONI.2021-11-05T07:29:16.193_1
Header ID
PIONI.2021-11-05T07:29:16.193
Date updated
2021-11-05 07:35:58 UTC+0000
Release date
2021-11-05 07:29:16 UTC+0000
UTC Start
2021-11-05 07:29:16.194
UTC End
2021-11-05 07:29:41.794
MJD Start
59523.3119929838
MJD End
59523.3122892801
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003312
Ambient temperature (°C)
10.79
Seeing (arcsec)
1.2
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 122.3110 122.3170 242.4000 242.5000
K0-D0 95.8700 95.8590 253.0000 253.0000
K0-J3 52.6060 52.5840 335.3130 335.3800
B2-D0 33.0690 33.0800 30.5000 30.5000
B2-J3 135.5420 135.5820 39.6380 39.6710
D0-J3 103.0290 103.0580 42.5690 42.5990
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 59523.3119929838
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 122.311
HIERARCH ESO ISS PBL12 END 122.317
HIERARCH ESO ISS PBLA12 START 242.4
HIERARCH ESO ISS PBLA12 END 242.5
HIERARCH ESO ISS PBL13 START 95.87
HIERARCH ESO ISS PBL13 END 95.859
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 52.606
HIERARCH ESO ISS PBL14 END 52.584
HIERARCH ESO ISS PBLA14 START 335.313
HIERARCH ESO ISS PBLA14 END 335.38
HIERARCH ESO ISS PBL23 START 33.069
HIERARCH ESO ISS PBL23 END 33.08
HIERARCH ESO ISS PBLA23 START 30.5
HIERARCH ESO ISS PBLA23 END 30.5
HIERARCH ESO ISS PBL24 START 135.542
HIERARCH ESO ISS PBL24 END 135.582
HIERARCH ESO ISS PBLA24 START 39.638
HIERARCH ESO ISS PBLA24 END 39.671
HIERARCH ESO ISS PBL34 START 103.029
HIERARCH ESO ISS PBL34 END 103.058
HIERARCH ESO ISS PBLA34 START 42.569
HIERARCH ESO ISS PBLA34 END 42.599
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 1.51