Exposure
ID
PIONI.2021-10-29T02:12:38.056_1
Header ID
PIONI.2021-10-29T02:12:38.056
Date updated
2021-10-29 02:21:40 UTC+0000
Release date
2021-10-29 02:12:38 UTC+0000
UTC Start
2021-10-29 02:12:38.056
UTC End
2021-10-29 02:13:03.656
MJD Start
59516.0921071349
MJD End
59516.0924034312
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 23.0230 23.0420 132.5000 132.5000
A0-D0 25.9410 25.9760 48.2000 48.3000
A0-C1 18.3510 18.3830 104.5330 104.5610
B2-D0 32.9140 32.9160 4.1000 4.2000
B2-C1 10.9650 10.9660 4.0640 4.1520
D0-C1 21.9490 21.9500 184.1150 184.2040
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 59516.0921071349
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 23.023
HIERARCH ESO ISS PBL12 END 23.042
HIERARCH ESO ISS PBLA12 START 132.5
HIERARCH ESO ISS PBLA12 END 132.5
HIERARCH ESO ISS PBL13 START 25.941
HIERARCH ESO ISS PBL13 END 25.976
HIERARCH ESO ISS PBLA13 START 48.2
HIERARCH ESO ISS PBLA13 END 48.3
HIERARCH ESO ISS PBL14 START 18.351
HIERARCH ESO ISS PBL14 END 18.383
HIERARCH ESO ISS PBLA14 START 104.533
HIERARCH ESO ISS PBLA14 END 104.561
HIERARCH ESO ISS PBL23 START 32.914
HIERARCH ESO ISS PBL23 END 32.916
HIERARCH ESO ISS PBLA23 START 4.1
HIERARCH ESO ISS PBLA23 END 4.2
HIERARCH ESO ISS PBL24 START 10.965
HIERARCH ESO ISS PBL24 END 10.966
HIERARCH ESO ISS PBLA24 START 4.064
HIERARCH ESO ISS PBLA24 END 4.152
HIERARCH ESO ISS PBL34 START 21.949
HIERARCH ESO ISS PBL34 END 21.95
HIERARCH ESO ISS PBLA34 START 184.115
HIERARCH ESO ISS PBLA34 END 184.204
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