Exposure
ID
PIONI.2021-11-04T05:55:25.156_1
Header ID
PIONI.2021-11-04T05:55:25.156
Date updated
2021-11-04 06:00:50 UTC+0000
Release date
2021-11-04 05:55:25 UTC+0000
UTC Start
2021-11-04 05:55:25.157
UTC End
2021-11-04 05:55:50.757
MJD Start
59522.2468189439
MJD End
59522.2471152402
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0085745
Ambient temperature (°C)
10.87
Seeing (arcsec)
0.375
Observation
ID
48738
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
36502
Name
32 Eri A
RA
58.572492
DEC
-2.95473
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 121.2000 121.2380 241.9000 242.0000
K0-D0 95.7700 95.7850 252.6000 252.6000
K0-J3 52.8750 52.8500 332.3910 332.4490
B2-D0 32.2960 32.3100 28.9000 28.9000
B2-J3 132.6080 132.6680 38.4480 38.4880
D0-J3 100.9040 100.9500 41.4980 41.5350
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 59522.2468189439
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 32 Eri A
RA 58.572492
DEC -2.95473
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 B2
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 121.2
HIERARCH ESO ISS PBL12 END 121.238
HIERARCH ESO ISS PBLA12 START 241.9
HIERARCH ESO ISS PBLA12 END 242.0
HIERARCH ESO ISS PBL13 START 95.77
HIERARCH ESO ISS PBL13 END 95.785
HIERARCH ESO ISS PBLA13 START 252.6
HIERARCH ESO ISS PBLA13 END 252.6
HIERARCH ESO ISS PBL14 START 52.875
HIERARCH ESO ISS PBL14 END 52.85
HIERARCH ESO ISS PBLA14 START 332.391
HIERARCH ESO ISS PBLA14 END 332.449
HIERARCH ESO ISS PBL23 START 32.296
HIERARCH ESO ISS PBL23 END 32.31
HIERARCH ESO ISS PBLA23 START 28.9
HIERARCH ESO ISS PBLA23 END 28.9
HIERARCH ESO ISS PBL24 START 132.608
HIERARCH ESO ISS PBL24 END 132.668
HIERARCH ESO ISS PBLA24 START 38.448
HIERARCH ESO ISS PBLA24 END 38.488
HIERARCH ESO ISS PBL34 START 100.904
HIERARCH ESO ISS PBL34 END 100.95
HIERARCH ESO ISS PBLA34 START 41.498
HIERARCH ESO ISS PBLA34 END 41.535
HIERARCH ESO ISS AMBI TAU0 START 0.008283
HIERARCH ESO ISS AMBI TAU0 END 0.008866
HIERARCH ESO ISS AMBI TEMP 10.87
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.37