Exposure
ID
PIONI.2021-11-02T03:18:41.564_1
Header ID
PIONI.2021-11-02T03:18:41.564
Date updated
2021-11-02 03:26:13 UTC+0000
Release date
2021-11-02 03:18:41 UTC+0000
UTC Start
2021-11-02 03:18:41.564
UTC End
2021-11-02 03:19:07.164
MJD Start
59520.1379810693
MJD End
59520.1382773656
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003127
Ambient temperature (°C)
12.05
Seeing (arcsec)
0.91
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 24.8630 24.8710 135.6000 135.6000
A0-D0 30.0490 30.0720 61.5000 61.6000
A0-C1 21.5820 21.5980 109.1160 109.1550
B2-D0 33.3370 33.3410 15.7000 15.8000
B2-C1 11.1050 11.1070 15.6380 15.7180
D0-C1 22.2320 22.2340 195.6990 195.7790
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 59520.1379810693
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 24.863
HIERARCH ESO ISS PBL12 END 24.871
HIERARCH ESO ISS PBLA12 START 135.6
HIERARCH ESO ISS PBLA12 END 135.6
HIERARCH ESO ISS PBL13 START 30.049
HIERARCH ESO ISS PBL13 END 30.072
HIERARCH ESO ISS PBLA13 START 61.5
HIERARCH ESO ISS PBLA13 END 61.6
HIERARCH ESO ISS PBL14 START 21.582
HIERARCH ESO ISS PBL14 END 21.598
HIERARCH ESO ISS PBLA14 START 109.116
HIERARCH ESO ISS PBLA14 END 109.155
HIERARCH ESO ISS PBL23 START 33.337
HIERARCH ESO ISS PBL23 END 33.341
HIERARCH ESO ISS PBLA23 START 15.7
HIERARCH ESO ISS PBLA23 END 15.8
HIERARCH ESO ISS PBL24 START 11.105
HIERARCH ESO ISS PBL24 END 11.107
HIERARCH ESO ISS PBLA24 START 15.638
HIERARCH ESO ISS PBLA24 END 15.718
HIERARCH ESO ISS PBL34 START 22.232
HIERARCH ESO ISS PBL34 END 22.234
HIERARCH ESO ISS PBLA34 START 195.699
HIERARCH ESO ISS PBLA34 END 195.779
HIERARCH ESO ISS AMBI TAU0 START 0.003127
HIERARCH ESO ISS AMBI TAU0 END 0.003127
HIERARCH ESO ISS AMBI TEMP 12.05
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.91