Exposure
ID
PIONI.2021-10-29T02:10:43.762_1
Header ID
PIONI.2021-10-29T02:10:43.762
Date updated
2021-10-29 02:16:46 UTC+0000
Release date
2021-10-29 02:10:43 UTC+0000
UTC Start
2021-10-29 02:10:43.762
UTC End
2021-10-29 02:11:09.362
MJD Start
59516.0907842824
MJD End
59516.0910805787
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0051405
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.545
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 22.9630 22.9820 132.4000 132.4000
A0-D0 25.8330 25.8670 47.8000 47.9000
A0-C1 18.2510 18.2830 104.4440 104.4720
B2-D0 32.9100 32.9110 3.8000 3.9000
B2-C1 10.9640 10.9640 3.7820 3.8710
D0-C1 21.9460 21.9470 183.8340 183.9230
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 59516.0907842824
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 22.963
HIERARCH ESO ISS PBL12 END 22.982
HIERARCH ESO ISS PBLA12 START 132.4
HIERARCH ESO ISS PBLA12 END 132.4
HIERARCH ESO ISS PBL13 START 25.833
HIERARCH ESO ISS PBL13 END 25.867
HIERARCH ESO ISS PBLA13 START 47.8
HIERARCH ESO ISS PBLA13 END 47.9
HIERARCH ESO ISS PBL14 START 18.251
HIERARCH ESO ISS PBL14 END 18.283
HIERARCH ESO ISS PBLA14 START 104.444
HIERARCH ESO ISS PBLA14 END 104.472
HIERARCH ESO ISS PBL23 START 32.91
HIERARCH ESO ISS PBL23 END 32.911
HIERARCH ESO ISS PBLA23 START 3.8
HIERARCH ESO ISS PBLA23 END 3.9
HIERARCH ESO ISS PBL24 START 10.964
HIERARCH ESO ISS PBL24 END 10.964
HIERARCH ESO ISS PBLA24 START 3.782
HIERARCH ESO ISS PBLA24 END 3.871
HIERARCH ESO ISS PBL34 START 21.946
HIERARCH ESO ISS PBL34 END 21.947
HIERARCH ESO ISS PBLA34 START 183.834
HIERARCH ESO ISS PBLA34 END 183.923
HIERARCH ESO ISS AMBI TAU0 START 0.004974
HIERARCH ESO ISS AMBI TAU0 END 0.005307
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.53