Exposure
ID
PIONI.2021-11-07T05:11:18.268_1
Header ID
PIONI.2021-11-07T05:11:18.268
Date updated
2021-11-07 05:20:38 UTC+0000
Release date
2021-11-07 05:11:18 UTC+0000
UTC Start
2021-11-07 05:11:18.268
UTC End
2021-11-07 05:11:43.868
MJD Start
59525.216183661
MJD End
59525.2164799573
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0064695
Ambient temperature (°C)
12.29
Seeing (arcsec)
0.485
Observation
ID
48771
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
36528
Name
tau02 Eri
RA
42.759472
DEC
-21.0041
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 67.2270 67.1970 275.6000 275.6000
K0-D0 94.8860 94.8520 254.8000 254.9000
K0-J3 56.0630 56.0560 337.7060 337.7780
G2-D0 39.9320 39.9280 218.1000 218.2000
G2-J3 64.3270 64.3180 45.1960 45.2430
D0-J3 104.0720 104.0600 42.4960 42.5440
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 59525.216183661
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.759472
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.227
HIERARCH ESO ISS PBL12 END 67.197
HIERARCH ESO ISS PBLA12 START 275.6
HIERARCH ESO ISS PBLA12 END 275.6
HIERARCH ESO ISS PBL13 START 94.886
HIERARCH ESO ISS PBL13 END 94.852
HIERARCH ESO ISS PBLA13 START 254.8
HIERARCH ESO ISS PBLA13 END 254.9
HIERARCH ESO ISS PBL14 START 56.063
HIERARCH ESO ISS PBL14 END 56.056
HIERARCH ESO ISS PBLA14 START 337.706
HIERARCH ESO ISS PBLA14 END 337.778
HIERARCH ESO ISS PBL23 START 39.932
HIERARCH ESO ISS PBL23 END 39.928
HIERARCH ESO ISS PBLA23 START 218.1
HIERARCH ESO ISS PBLA23 END 218.2
HIERARCH ESO ISS PBL24 START 64.327
HIERARCH ESO ISS PBL24 END 64.318
HIERARCH ESO ISS PBLA24 START 45.196
HIERARCH ESO ISS PBLA24 END 45.243
HIERARCH ESO ISS PBL34 START 104.072
HIERARCH ESO ISS PBL34 END 104.06
HIERARCH ESO ISS PBLA34 START 42.496
HIERARCH ESO ISS PBLA34 END 42.544
HIERARCH ESO ISS AMBI TAU0 START 0.006769
HIERARCH ESO ISS AMBI TAU0 END 0.00617
HIERARCH ESO ISS AMBI TEMP 12.29
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.5