Exposure
ID
PIONI.2021-10-29T03:39:23.677_1
Header ID
PIONI.2021-10-29T03:39:23.677
Date updated
2021-10-29 03:51:28 UTC+0000
Release date
2021-10-29 03:39:23 UTC+0000
UTC Start
2021-10-29 03:39:23.677
UTC End
2021-10-29 03:39:49.277
MJD Start
59516.1523573711
MJD End
59516.1526536674
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006289
Ambient temperature (°C)
13.52
Seeing (arcsec)
0.475
Observation
ID
48671
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
36451
Name
bet Eri
RA
76.960918
DEC
-5.08681
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 23.4900 23.5060 138.2000 138.1000
A0-D0 18.1570 18.2090 49.3000 49.5000
A0-C1 16.9020 16.9370 117.2150 117.1680
B2-D0 29.3920 29.3890 356.3000 356.4000
B2-C1 9.7940 9.7930 356.2670 356.3660
D0-C1 19.5980 19.5960 176.3130 176.4130
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 59516.1523573711
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.960918
DEC -5.08681
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 23.49
HIERARCH ESO ISS PBL12 END 23.506
HIERARCH ESO ISS PBLA12 START 138.2
HIERARCH ESO ISS PBLA12 END 138.1
HIERARCH ESO ISS PBL13 START 18.157
HIERARCH ESO ISS PBL13 END 18.209
HIERARCH ESO ISS PBLA13 START 49.3
HIERARCH ESO ISS PBLA13 END 49.5
HIERARCH ESO ISS PBL14 START 16.902
HIERARCH ESO ISS PBL14 END 16.937
HIERARCH ESO ISS PBLA14 START 117.215
HIERARCH ESO ISS PBLA14 END 117.168
HIERARCH ESO ISS PBL23 START 29.392
HIERARCH ESO ISS PBL23 END 29.389
HIERARCH ESO ISS PBLA23 START 356.3
HIERARCH ESO ISS PBLA23 END 356.4
HIERARCH ESO ISS PBL24 START 9.794
HIERARCH ESO ISS PBL24 END 9.793
HIERARCH ESO ISS PBLA24 START 356.267
HIERARCH ESO ISS PBLA24 END 356.366
HIERARCH ESO ISS PBL34 START 19.598
HIERARCH ESO ISS PBL34 END 19.596
HIERARCH ESO ISS PBLA34 START 176.313
HIERARCH ESO ISS PBLA34 END 176.413
HIERARCH ESO ISS AMBI TAU0 START 0.006289
HIERARCH ESO ISS AMBI TAU0 END 0.006289
HIERARCH ESO ISS AMBI TEMP 13.52
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.47