Exposure
ID
PIONI.2021-10-29T02:35:16.894_1
Header ID
PIONI.2021-10-29T02:35:16.894
Date updated
2021-10-29 02:41:53 UTC+0000
Release date
2021-10-29 02:35:16 UTC+0000
UTC Start
2021-10-29 02:35:16.894
UTC End
2021-10-29 02:35:42.494
MJD Start
59516.1078344164
MJD End
59516.1081307127
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003517
Ambient temperature (°C)
13.61
Seeing (arcsec)
0.975
Observation
ID
48670
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
36450
Name
10 Tau
RA
54.215025
DEC
0.39726
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 24.6260 24.6360 138.0000 138.0000
A0-D0 19.2190 19.2770 61.2000 61.3000
A0-C1 18.9330 18.9610 118.8250 118.7760
B2-D0 27.5630 27.5630 0.8000 0.9000
B2-C1 9.1850 9.1850 0.7400 0.8460
D0-C1 18.3780 18.3780 180.7970 180.9040
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 59516.1078344164
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 10 Tau
RA 54.215025
DEC 0.39726
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 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 24.626
HIERARCH ESO ISS PBL12 END 24.636
HIERARCH ESO ISS PBLA12 START 138.0
HIERARCH ESO ISS PBLA12 END 138.0
HIERARCH ESO ISS PBL13 START 19.219
HIERARCH ESO ISS PBL13 END 19.277
HIERARCH ESO ISS PBLA13 START 61.2
HIERARCH ESO ISS PBLA13 END 61.3
HIERARCH ESO ISS PBL14 START 18.933
HIERARCH ESO ISS PBL14 END 18.961
HIERARCH ESO ISS PBLA14 START 118.825
HIERARCH ESO ISS PBLA14 END 118.776
HIERARCH ESO ISS PBL23 START 27.563
HIERARCH ESO ISS PBL23 END 27.563
HIERARCH ESO ISS PBLA23 START 0.8
HIERARCH ESO ISS PBLA23 END 0.9
HIERARCH ESO ISS PBL24 START 9.185
HIERARCH ESO ISS PBL24 END 9.185
HIERARCH ESO ISS PBLA24 START 0.74
HIERARCH ESO ISS PBLA24 END 0.846
HIERARCH ESO ISS PBL34 START 18.378
HIERARCH ESO ISS PBL34 END 18.378
HIERARCH ESO ISS PBLA34 START 180.797
HIERARCH ESO ISS PBLA34 END 180.904
HIERARCH ESO ISS AMBI TAU0 START 0.003547
HIERARCH ESO ISS AMBI TAU0 END 0.003487
HIERARCH ESO ISS AMBI TEMP 13.61
HIERARCH ESO ISS AMBI FWHM START 0.95
HIERARCH ESO ISS AMBI FWHM END 1.0