Exposure
ID
PIONI.2021-10-29T02:51:22.734_1
Header ID
PIONI.2021-10-29T02:51:22.734
Date updated
2021-10-29 02:56:48 UTC+0000
Release date
2021-10-29 02:51:22 UTC+0000
UTC Start
2021-10-29 02:51:22.734
UTC End
2021-10-29 02:51:48.334
MJD Start
59516.1190131209
MJD End
59516.1193094172
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004555
Ambient temperature (°C)
13.45
Seeing (arcsec)
0.73
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 24.0820 24.0960 133.5000 133.6000
A0-D0 28.0670 28.0980 55.2000 55.3000
A0-C1 20.1490 20.1730 106.5200 106.5530
B2-D0 33.0660 33.0690 9.7000 9.8000
B2-C1 11.0160 11.0170 9.7070 9.7920
D0-C1 22.0510 22.0530 189.7640 189.8490
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 59516.1190131209
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 24.082
HIERARCH ESO ISS PBL12 END 24.096
HIERARCH ESO ISS PBLA12 START 133.5
HIERARCH ESO ISS PBLA12 END 133.6
HIERARCH ESO ISS PBL13 START 28.067
HIERARCH ESO ISS PBL13 END 28.098
HIERARCH ESO ISS PBLA13 START 55.2
HIERARCH ESO ISS PBLA13 END 55.3
HIERARCH ESO ISS PBL14 START 20.149
HIERARCH ESO ISS PBL14 END 20.173
HIERARCH ESO ISS PBLA14 START 106.52
HIERARCH ESO ISS PBLA14 END 106.553
HIERARCH ESO ISS PBL23 START 33.066
HIERARCH ESO ISS PBL23 END 33.069
HIERARCH ESO ISS PBLA23 START 9.7
HIERARCH ESO ISS PBLA23 END 9.8
HIERARCH ESO ISS PBL24 START 11.016
HIERARCH ESO ISS PBL24 END 11.017
HIERARCH ESO ISS PBLA24 START 9.707
HIERARCH ESO ISS PBLA24 END 9.792
HIERARCH ESO ISS PBL34 START 22.051
HIERARCH ESO ISS PBL34 END 22.053
HIERARCH ESO ISS PBLA34 START 189.764
HIERARCH ESO ISS PBLA34 END 189.849
HIERARCH ESO ISS AMBI TAU0 START 0.004683
HIERARCH ESO ISS AMBI TAU0 END 0.004427
HIERARCH ESO ISS AMBI TEMP 13.45
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.75