Exposure
ID
PIONI.2021-10-29T02:11:59.967_1
Header ID
PIONI.2021-10-29T02:11:59.967
Date updated
2021-10-29 02:21:40 UTC+0000
Release date
2021-10-29 02:11:59 UTC+0000
UTC Start
2021-10-29 02:11:59.967
UTC End
2021-10-29 02:12:25.567
MJD Start
59516.0916662877
MJD End
59516.091962584
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004796
Ambient temperature (°C)
13.68
Seeing (arcsec)
0.54
Observation
ID
48668
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
36448
Name
tau02 Eri
RA
42.758281
DEC
-21.0041
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 23.0030 23.0220 132.5000 132.5000
A0-D0 25.9050 25.9400 48.1000 48.2000
A0-C1 18.3180 18.3490 104.5030 104.5310
B2-D0 32.9130 32.9140 4.0000 4.1000
B2-C1 10.9650 10.9650 3.9700 4.0590
D0-C1 21.9480 21.9490 184.0220 184.1100
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 59516.0916662877
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.758281
DEC -21.0041
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 23.003
HIERARCH ESO ISS PBL12 END 23.022
HIERARCH ESO ISS PBLA12 START 132.5
HIERARCH ESO ISS PBLA12 END 132.5
HIERARCH ESO ISS PBL13 START 25.905
HIERARCH ESO ISS PBL13 END 25.94
HIERARCH ESO ISS PBLA13 START 48.1
HIERARCH ESO ISS PBLA13 END 48.2
HIERARCH ESO ISS PBL14 START 18.318
HIERARCH ESO ISS PBL14 END 18.349
HIERARCH ESO ISS PBLA14 START 104.503
HIERARCH ESO ISS PBLA14 END 104.531
HIERARCH ESO ISS PBL23 START 32.913
HIERARCH ESO ISS PBL23 END 32.914
HIERARCH ESO ISS PBLA23 START 4.0
HIERARCH ESO ISS PBLA23 END 4.1
HIERARCH ESO ISS PBL24 START 10.965
HIERARCH ESO ISS PBL24 END 10.965
HIERARCH ESO ISS PBLA24 START 3.97
HIERARCH ESO ISS PBLA24 END 4.059
HIERARCH ESO ISS PBL34 START 21.948
HIERARCH ESO ISS PBL34 END 21.949
HIERARCH ESO ISS PBLA34 START 184.022
HIERARCH ESO ISS PBLA34 END 184.11
HIERARCH ESO ISS AMBI TAU0 START 0.004796
HIERARCH ESO ISS AMBI TAU0 END 0.004796
HIERARCH ESO ISS AMBI TEMP 13.68
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.54