Exposure
ID
PIONI.2021-10-29T04:31:25.198_1
Header ID
PIONI.2021-10-29T04:31:25.198
Date updated
2021-10-29 04:41:24 UTC+0000
Release date
2021-10-29 04:31:25 UTC+0000
UTC Start
2021-10-29 04:31:25.198
UTC End
2021-10-29 04:31:50.798
MJD Start
59516.1884860913
MJD End
59516.1887823876
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0047165
Ambient temperature (°C)
13.13
Seeing (arcsec)
0.53
Observation
ID
48673
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
36453
Name
10 Tau
RA
54.215307
DEC
0.39784
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 25.1250 25.1190 136.5000 136.6000
A0-D0 28.6920 28.7280 71.0000 71.0000
A0-C1 22.4570 22.4640 113.7640 113.7550
B2-D0 29.2860 29.3010 19.6000 19.7000
B2-C1 9.7560 9.7610 19.5990 19.6810
D0-C1 19.5300 19.5400 199.6710 199.7530
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 59516.1884860913
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 10 Tau
RA 54.215307
DEC 0.39784
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 25.125
HIERARCH ESO ISS PBL12 END 25.119
HIERARCH ESO ISS PBLA12 START 136.5
HIERARCH ESO ISS PBLA12 END 136.6
HIERARCH ESO ISS PBL13 START 28.692
HIERARCH ESO ISS PBL13 END 28.728
HIERARCH ESO ISS PBLA13 START 71.0
HIERARCH ESO ISS PBLA13 END 71.0
HIERARCH ESO ISS PBL14 START 22.457
HIERARCH ESO ISS PBL14 END 22.464
HIERARCH ESO ISS PBLA14 START 113.764
HIERARCH ESO ISS PBLA14 END 113.755
HIERARCH ESO ISS PBL23 START 29.286
HIERARCH ESO ISS PBL23 END 29.301
HIERARCH ESO ISS PBLA23 START 19.6
HIERARCH ESO ISS PBLA23 END 19.7
HIERARCH ESO ISS PBL24 START 9.756
HIERARCH ESO ISS PBL24 END 9.761
HIERARCH ESO ISS PBLA24 START 19.599
HIERARCH ESO ISS PBLA24 END 19.681
HIERARCH ESO ISS PBL34 START 19.53
HIERARCH ESO ISS PBL34 END 19.54
HIERARCH ESO ISS PBLA34 START 199.671
HIERARCH ESO ISS PBLA34 END 199.753
HIERARCH ESO ISS AMBI TAU0 START 0.004436
HIERARCH ESO ISS AMBI TAU0 END 0.004997
HIERARCH ESO ISS AMBI TEMP 13.13
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.52