Exposure
ID
PIONI.2021-11-09T06:06:58.187_1
Header ID
PIONI.2021-11-09T06:06:58.187
Date updated
2021-11-09 06:15:39 UTC+0000
Release date
2022-11-09 06:15:39 UTC+0000
UTC Start
2021-11-09 06:06:58.187
UTC End
2021-11-09 06:07:23.787
MJD Start
59527.2548401328
MJD End
59527.2551364291
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003463
Ambient temperature (°C)
11.78
Seeing (arcsec)
0.75
Observation
ID
48833
Category
science
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
36571
Name
eps Eri
RA
53.227321
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 84.4590 84.3850 119.8000 119.8000
A0-J2 123.6170 123.5190 95.6000 95.6000
A0-J3 132.3590 132.3510 50.5690 50.5910
G1-J2 58.0000 57.9880 59.0000 59.0000
G1-J3 129.3060 129.3220 12.9270 12.9840
J2-J3 98.3900 98.3720 347.7980 347.8720
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59527.2548401328
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227321
DEC -9.45816
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 G1
HIERARCH ESO ISS CONF STATION3 J2
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 84.459
HIERARCH ESO ISS PBL12 END 84.385
HIERARCH ESO ISS PBLA12 START 119.8
HIERARCH ESO ISS PBLA12 END 119.8
HIERARCH ESO ISS PBL13 START 123.617
HIERARCH ESO ISS PBL13 END 123.519
HIERARCH ESO ISS PBLA13 START 95.6
HIERARCH ESO ISS PBLA13 END 95.6
HIERARCH ESO ISS PBL14 START 132.359
HIERARCH ESO ISS PBL14 END 132.351
HIERARCH ESO ISS PBLA14 START 50.569
HIERARCH ESO ISS PBLA14 END 50.591
HIERARCH ESO ISS PBL23 START 58.0
HIERARCH ESO ISS PBL23 END 57.988
HIERARCH ESO ISS PBLA23 START 59.0
HIERARCH ESO ISS PBLA23 END 59.0
HIERARCH ESO ISS PBL24 START 129.306
HIERARCH ESO ISS PBL24 END 129.322
HIERARCH ESO ISS PBLA24 START 12.927
HIERARCH ESO ISS PBLA24 END 12.984
HIERARCH ESO ISS PBL34 START 98.39
HIERARCH ESO ISS PBL34 END 98.372
HIERARCH ESO ISS PBLA34 START 347.798
HIERARCH ESO ISS PBLA34 END 347.872
HIERARCH ESO ISS AMBI TAU0 START 0.003463
HIERARCH ESO ISS AMBI TAU0 END 0.003463
HIERARCH ESO ISS AMBI TEMP 11.78
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.75