Exposure
ID
PIONI.2021-10-29T04:47:20.536_1
Header ID
PIONI.2021-10-29T04:47:20.536
Date updated
2021-10-29 04:56:04 UTC+0000
Release date
2021-10-29 04:47:20 UTC+0000
UTC Start
2021-10-29 04:47:20.536
UTC End
2021-10-29 04:47:46.136
MJD Start
59516.1995432433
MJD End
59516.1998395396
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0053755
Ambient temperature (°C)
12.94
Seeing (arcsec)
0.48
Observation
ID
48672
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
36452
Name
32 Eri A
RA
58.571934
DEC
-2.95473
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 25.2360 25.2330 136.7000 136.7000
A0-D0 28.8890 28.9210 69.4000 69.4000
A0-C1 22.3680 22.3750 113.3530 113.3490
B2-D0 30.1580 30.1710 18.8000 18.9000
B2-C1 10.0470 10.0510 18.7990 18.8750
D0-C1 20.1110 20.1200 198.8690 198.9440
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 59516.1995432433
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 32 Eri A
RA 58.571934
DEC -2.95473
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 25.236
HIERARCH ESO ISS PBL12 END 25.233
HIERARCH ESO ISS PBLA12 START 136.7
HIERARCH ESO ISS PBLA12 END 136.7
HIERARCH ESO ISS PBL13 START 28.889
HIERARCH ESO ISS PBL13 END 28.921
HIERARCH ESO ISS PBLA13 START 69.4
HIERARCH ESO ISS PBLA13 END 69.4
HIERARCH ESO ISS PBL14 START 22.368
HIERARCH ESO ISS PBL14 END 22.375
HIERARCH ESO ISS PBLA14 START 113.353
HIERARCH ESO ISS PBLA14 END 113.349
HIERARCH ESO ISS PBL23 START 30.158
HIERARCH ESO ISS PBL23 END 30.171
HIERARCH ESO ISS PBLA23 START 18.8
HIERARCH ESO ISS PBLA23 END 18.9
HIERARCH ESO ISS PBL24 START 10.047
HIERARCH ESO ISS PBL24 END 10.051
HIERARCH ESO ISS PBLA24 START 18.799
HIERARCH ESO ISS PBLA24 END 18.875
HIERARCH ESO ISS PBL34 START 20.111
HIERARCH ESO ISS PBL34 END 20.12
HIERARCH ESO ISS PBLA34 START 198.869
HIERARCH ESO ISS PBLA34 END 198.944
HIERARCH ESO ISS AMBI TAU0 START 0.005158
HIERARCH ESO ISS AMBI TAU0 END 0.005593
HIERARCH ESO ISS AMBI TEMP 12.94
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.44