Exposure
ID
PIONI.2021-11-02T03:38:52.479_1
Header ID
PIONI.2021-11-02T03:38:52.479
Date updated
2021-11-02 03:46:39 UTC+0000
Release date
2021-11-02 03:38:52 UTC+0000
UTC Start
2021-11-02 03:38:52.478
UTC End
2021-11-02 03:39:18.078
MJD Start
59520.1519962759
MJD End
59520.1522925722
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003138
Ambient temperature (°C)
11.72
Seeing (arcsec)
0.9
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 25.0890 25.0940 136.9000 136.9000
A0-D0 30.7750 30.7940 64.0000 64.1000
A0-C1 22.0430 22.0550 110.4860 110.5270
B2-D0 33.4800 33.4840 18.3000 18.4000
B2-C1 11.1530 11.1540 18.2480 18.3210
D0-C1 22.3270 22.3300 198.3100 198.3830
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 59520.1519962759
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 25.089
HIERARCH ESO ISS PBL12 END 25.094
HIERARCH ESO ISS PBLA12 START 136.9
HIERARCH ESO ISS PBLA12 END 136.9
HIERARCH ESO ISS PBL13 START 30.775
HIERARCH ESO ISS PBL13 END 30.794
HIERARCH ESO ISS PBLA13 START 64.0
HIERARCH ESO ISS PBLA13 END 64.1
HIERARCH ESO ISS PBL14 START 22.043
HIERARCH ESO ISS PBL14 END 22.055
HIERARCH ESO ISS PBLA14 START 110.486
HIERARCH ESO ISS PBLA14 END 110.527
HIERARCH ESO ISS PBL23 START 33.48
HIERARCH ESO ISS PBL23 END 33.484
HIERARCH ESO ISS PBLA23 START 18.3
HIERARCH ESO ISS PBLA23 END 18.4
HIERARCH ESO ISS PBL24 START 11.153
HIERARCH ESO ISS PBL24 END 11.154
HIERARCH ESO ISS PBLA24 START 18.248
HIERARCH ESO ISS PBLA24 END 18.321
HIERARCH ESO ISS PBL34 START 22.327
HIERARCH ESO ISS PBL34 END 22.33
HIERARCH ESO ISS PBLA34 START 198.31
HIERARCH ESO ISS PBLA34 END 198.383
HIERARCH ESO ISS AMBI TAU0 START 0.003138
HIERARCH ESO ISS AMBI TAU0 END 0.003138
HIERARCH ESO ISS AMBI TEMP 11.72
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.9