Exposure
ID
PIONI.2021-10-29T02:48:50.377_1
Header ID
PIONI.2021-10-29T02:48:50.377
Date updated
2021-10-29 02:56:48 UTC+0000
Release date
2021-10-29 02:48:50 UTC+0000
UTC Start
2021-10-29 02:48:50.376
UTC End
2021-10-29 02:49:15.976
MJD Start
59516.1172497254
MJD End
59516.1175460217
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004489
Ambient temperature (°C)
13.38
Seeing (arcsec)
0.66
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 24.0230 24.0370 133.4000 133.5000
A0-D0 27.9360 27.9660 54.8000 54.9000
A0-C1 20.0460 20.0700 106.3800 106.4120
B2-D0 33.0530 33.0560 9.4000 9.5000
B2-C1 11.0110 11.0120 9.3450 9.4280
D0-C1 22.0420 22.0440 189.4020 189.4850
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 59516.1172497254
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 24.023
HIERARCH ESO ISS PBL12 END 24.037
HIERARCH ESO ISS PBLA12 START 133.4
HIERARCH ESO ISS PBLA12 END 133.5
HIERARCH ESO ISS PBL13 START 27.936
HIERARCH ESO ISS PBL13 END 27.966
HIERARCH ESO ISS PBLA13 START 54.8
HIERARCH ESO ISS PBLA13 END 54.9
HIERARCH ESO ISS PBL14 START 20.046
HIERARCH ESO ISS PBL14 END 20.07
HIERARCH ESO ISS PBLA14 START 106.38
HIERARCH ESO ISS PBLA14 END 106.412
HIERARCH ESO ISS PBL23 START 33.053
HIERARCH ESO ISS PBL23 END 33.056
HIERARCH ESO ISS PBLA23 START 9.4
HIERARCH ESO ISS PBLA23 END 9.5
HIERARCH ESO ISS PBL24 START 11.011
HIERARCH ESO ISS PBL24 END 11.012
HIERARCH ESO ISS PBLA24 START 9.345
HIERARCH ESO ISS PBLA24 END 9.428
HIERARCH ESO ISS PBL34 START 22.042
HIERARCH ESO ISS PBL34 END 22.044
HIERARCH ESO ISS PBLA34 START 189.402
HIERARCH ESO ISS PBLA34 END 189.485
HIERARCH ESO ISS AMBI TAU0 START 0.004489
HIERARCH ESO ISS AMBI TAU0 END 0.004489
HIERARCH ESO ISS AMBI TEMP 13.38
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.66