Exposure
ID
PIONI.2021-10-29T02:57:58.413_1
Header ID
PIONI.2021-10-29T02:57:58.413
Date updated
2021-10-29 03:06:42 UTC+0000
Release date
2021-10-29 02:57:58 UTC+0000
UTC Start
2021-10-29 02:57:58.413
UTC End
2021-10-29 02:58:24.013
MJD Start
59516.1235927441
MJD End
59516.1238890404
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004255
Ambient temperature (°C)
13.4
Seeing (arcsec)
0.79
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 24.2280 24.2410 133.8000 133.8000
A0-D0 28.4030 28.4320 56.3000 56.4000
A0-C1 20.4080 20.4300 106.8910 106.9240
B2-D0 33.1020 33.1060 10.7000 10.8000
B2-C1 11.0280 11.0290 10.6440 10.7260
D0-C1 22.0750 22.0770 190.7010 190.7840
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 59516.1235927441
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 24.228
HIERARCH ESO ISS PBL12 END 24.241
HIERARCH ESO ISS PBLA12 START 133.8
HIERARCH ESO ISS PBLA12 END 133.8
HIERARCH ESO ISS PBL13 START 28.403
HIERARCH ESO ISS PBL13 END 28.432
HIERARCH ESO ISS PBLA13 START 56.3
HIERARCH ESO ISS PBLA13 END 56.4
HIERARCH ESO ISS PBL14 START 20.408
HIERARCH ESO ISS PBL14 END 20.43
HIERARCH ESO ISS PBLA14 START 106.891
HIERARCH ESO ISS PBLA14 END 106.924
HIERARCH ESO ISS PBL23 START 33.102
HIERARCH ESO ISS PBL23 END 33.106
HIERARCH ESO ISS PBLA23 START 10.7
HIERARCH ESO ISS PBLA23 END 10.8
HIERARCH ESO ISS PBL24 START 11.028
HIERARCH ESO ISS PBL24 END 11.029
HIERARCH ESO ISS PBLA24 START 10.644
HIERARCH ESO ISS PBLA24 END 10.726
HIERARCH ESO ISS PBL34 START 22.075
HIERARCH ESO ISS PBL34 END 22.077
HIERARCH ESO ISS PBLA34 START 190.701
HIERARCH ESO ISS PBLA34 END 190.784
HIERARCH ESO ISS AMBI TAU0 START 0.004255
HIERARCH ESO ISS AMBI TAU0 END 0.004255
HIERARCH ESO ISS AMBI TEMP 13.4
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79