Exposure
ID
PIONI.2021-11-02T03:40:46.677_1
Header ID
PIONI.2021-11-02T03:40:46.677
Date updated
2021-11-02 03:46:39 UTC+0000
Release date
2021-11-02 03:40:46 UTC+0000
UTC Start
2021-11-02 03:40:46.677
UTC End
2021-11-02 03:41:12.277
MJD Start
59520.1533180228
MJD End
59520.1536143191
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.7
Seeing (arcsec)
0.9
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 25.1060 25.1110 137.0000 137.0000
A0-D0 30.8350 30.8540 64.2000 64.3000
A0-C1 22.0800 22.0910 110.6200 110.6630
B2-D0 33.4940 33.4980 18.5000 18.6000
B2-C1 11.1570 11.1590 18.4870 18.5620
D0-C1 22.3360 22.3390 198.5490 198.6240
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 59520.1533180228
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 25.106
HIERARCH ESO ISS PBL12 END 25.111
HIERARCH ESO ISS PBLA12 START 137.0
HIERARCH ESO ISS PBLA12 END 137.0
HIERARCH ESO ISS PBL13 START 30.835
HIERARCH ESO ISS PBL13 END 30.854
HIERARCH ESO ISS PBLA13 START 64.2
HIERARCH ESO ISS PBLA13 END 64.3
HIERARCH ESO ISS PBL14 START 22.08
HIERARCH ESO ISS PBL14 END 22.091
HIERARCH ESO ISS PBLA14 START 110.62
HIERARCH ESO ISS PBLA14 END 110.663
HIERARCH ESO ISS PBL23 START 33.494
HIERARCH ESO ISS PBL23 END 33.498
HIERARCH ESO ISS PBLA23 START 18.5
HIERARCH ESO ISS PBLA23 END 18.6
HIERARCH ESO ISS PBL24 START 11.157
HIERARCH ESO ISS PBL24 END 11.159
HIERARCH ESO ISS PBLA24 START 18.487
HIERARCH ESO ISS PBLA24 END 18.562
HIERARCH ESO ISS PBL34 START 22.336
HIERARCH ESO ISS PBL34 END 22.339
HIERARCH ESO ISS PBLA34 START 198.549
HIERARCH ESO ISS PBLA34 END 198.624
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.7
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9