Exposure
ID
PIONI.2021-11-04T05:37:32.445_1
Header ID
PIONI.2021-11-04T05:37:32.445
Date updated
2021-11-04 05:46:04 UTC+0000
Release date
2022-11-04 05:46:04 UTC+0000
UTC Start
2021-11-04 05:37:32.445
UTC End
2021-11-04 05:37:58.045
MJD Start
59522.2344033001
MJD End
59522.2346995964
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.008295
Ambient temperature (°C)
11.06
Seeing (arcsec)
0.38
Observation
ID
48737
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
36501
Name
eps Eri
RA
53.227324
DEC
-9.45816
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 122.0500 122.0690 241.5000 241.5000
K0-D0 95.9640 95.9670 252.4000 252.4000
K0-J3 54.5290 54.5120 333.7040 333.7650
B2-D0 33.2220 33.2310 28.4000 28.4000
B2-J3 135.5890 135.6260 37.7940 37.8390
D0-J3 102.9610 102.9890 40.8280 40.8710
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 59522.2344033001
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227324
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 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 122.05
HIERARCH ESO ISS PBL12 END 122.069
HIERARCH ESO ISS PBLA12 START 241.5
HIERARCH ESO ISS PBLA12 END 241.5
HIERARCH ESO ISS PBL13 START 95.964
HIERARCH ESO ISS PBL13 END 95.967
HIERARCH ESO ISS PBLA13 START 252.4
HIERARCH ESO ISS PBLA13 END 252.4
HIERARCH ESO ISS PBL14 START 54.529
HIERARCH ESO ISS PBL14 END 54.512
HIERARCH ESO ISS PBLA14 START 333.704
HIERARCH ESO ISS PBLA14 END 333.765
HIERARCH ESO ISS PBL23 START 33.222
HIERARCH ESO ISS PBL23 END 33.231
HIERARCH ESO ISS PBLA23 START 28.4
HIERARCH ESO ISS PBLA23 END 28.4
HIERARCH ESO ISS PBL24 START 135.589
HIERARCH ESO ISS PBL24 END 135.626
HIERARCH ESO ISS PBLA24 START 37.794
HIERARCH ESO ISS PBLA24 END 37.839
HIERARCH ESO ISS PBL34 START 102.961
HIERARCH ESO ISS PBL34 END 102.989
HIERARCH ESO ISS PBLA34 START 40.828
HIERARCH ESO ISS PBLA34 END 40.871
HIERARCH ESO ISS AMBI TAU0 START 0.008295
HIERARCH ESO ISS AMBI TAU0 END 0.008295
HIERARCH ESO ISS AMBI TEMP 11.06
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.38