Exposure
ID
PIONI.2021-11-06T05:13:18.648_1
Header ID
PIONI.2021-11-06T05:13:18.648
Date updated
2021-11-06 05:20:46 UTC+0000
Release date
2022-11-06 05:20:46 UTC+0000
UTC Start
2021-11-06 05:13:18.647
UTC End
2021-11-06 05:13:44.247
MJD Start
59524.2175769373
MJD End
59524.2178732336
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003911
Ambient temperature (°C)
10.97
Seeing (arcsec)
0.7
Observation
ID
48772
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
36529
Name
eps Eri
RA
53.227885
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.3450 68.3430 271.5000 271.6000
K0-D0 95.6360 95.6560 251.7000 251.7000
K0-J3 54.9850 54.9690 332.1080 332.1640
G2-D0 39.0360 39.0490 215.1000 215.2000
G2-J3 63.2480 63.2700 42.3390 42.3860
D0-J3 102.0930 102.1280 39.5890 39.6370
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 59524.2175769373
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227885
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 G2
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 68.345
HIERARCH ESO ISS PBL12 END 68.343
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.6
HIERARCH ESO ISS PBL13 START 95.636
HIERARCH ESO ISS PBL13 END 95.656
HIERARCH ESO ISS PBLA13 START 251.7
HIERARCH ESO ISS PBLA13 END 251.7
HIERARCH ESO ISS PBL14 START 54.985
HIERARCH ESO ISS PBL14 END 54.969
HIERARCH ESO ISS PBLA14 START 332.108
HIERARCH ESO ISS PBLA14 END 332.164
HIERARCH ESO ISS PBL23 START 39.036
HIERARCH ESO ISS PBL23 END 39.049
HIERARCH ESO ISS PBLA23 START 215.1
HIERARCH ESO ISS PBLA23 END 215.2
HIERARCH ESO ISS PBL24 START 63.248
HIERARCH ESO ISS PBL24 END 63.27
HIERARCH ESO ISS PBLA24 START 42.339
HIERARCH ESO ISS PBLA24 END 42.386
HIERARCH ESO ISS PBL34 START 102.093
HIERARCH ESO ISS PBL34 END 102.128
HIERARCH ESO ISS PBLA34 START 39.589
HIERARCH ESO ISS PBLA34 END 39.637
HIERARCH ESO ISS AMBI TAU0 START 0.003911
HIERARCH ESO ISS AMBI TAU0 END 0.003911
HIERARCH ESO ISS AMBI TEMP 10.97
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7