Exposure
ID
PIONI.2021-10-29T05:41:24.692_1
Header ID
PIONI.2021-10-29T05:41:24.692
Date updated
2021-10-29 05:46:21 UTC+0000
Release date
2021-10-29 05:41:24 UTC+0000
UTC Start
2021-10-29 05:41:24.692
UTC End
2021-10-29 05:41:50.292
MJD Start
59516.237091342
MJD End
59516.2373876383
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00425
Ambient temperature (°C)
12.68
Seeing (arcsec)
0.57
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 25.2960 25.2970 136.3000 136.4000
A0-D0 27.9470 27.9840 67.1000 67.1000
A0-C1 21.9600 21.9730 112.9990 112.9970
B2-D0 30.3280 30.3390 15.8000 15.9000
B2-C1 10.1040 10.1070 15.7940 15.8800
D0-C1 20.2240 20.2310 195.8620 195.9470
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 59516.237091342
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 25.296
HIERARCH ESO ISS PBL12 END 25.297
HIERARCH ESO ISS PBLA12 START 136.3
HIERARCH ESO ISS PBLA12 END 136.4
HIERARCH ESO ISS PBL13 START 27.947
HIERARCH ESO ISS PBL13 END 27.984
HIERARCH ESO ISS PBLA13 START 67.1
HIERARCH ESO ISS PBLA13 END 67.1
HIERARCH ESO ISS PBL14 START 21.96
HIERARCH ESO ISS PBL14 END 21.973
HIERARCH ESO ISS PBLA14 START 112.999
HIERARCH ESO ISS PBLA14 END 112.997
HIERARCH ESO ISS PBL23 START 30.328
HIERARCH ESO ISS PBL23 END 30.339
HIERARCH ESO ISS PBLA23 START 15.8
HIERARCH ESO ISS PBLA23 END 15.9
HIERARCH ESO ISS PBL24 START 10.104
HIERARCH ESO ISS PBL24 END 10.107
HIERARCH ESO ISS PBLA24 START 15.794
HIERARCH ESO ISS PBLA24 END 15.88
HIERARCH ESO ISS PBL34 START 20.224
HIERARCH ESO ISS PBL34 END 20.231
HIERARCH ESO ISS PBLA34 START 195.862
HIERARCH ESO ISS PBLA34 END 195.947
HIERARCH ESO ISS AMBI TAU0 START 0.00425
HIERARCH ESO ISS AMBI TAU0 END 0.00425
HIERARCH ESO ISS AMBI TEMP 12.68
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57