Exposure
ID
PIONI.2021-11-07T05:11:56.398_1
Header ID
PIONI.2021-11-07T05:11:56.398
Date updated
2021-11-07 05:20:38 UTC+0000
Release date
2021-11-07 05:11:56 UTC+0000
UTC Start
2021-11-07 05:11:56.398
UTC End
2021-11-07 05:12:21.998
MJD Start
59525.216624978
MJD End
59525.2169212743
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00617
Ambient temperature (°C)
12.31
Seeing (arcsec)
0.5
Observation
ID
48771
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
36528
Name
tau02 Eri
RA
42.759472
DEC
-21.0041
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 67.1950 67.1640 275.6000 275.7000
K0-D0 94.8500 94.8150 254.9000 254.9000
K0-J3 56.0560 56.0490 337.7820 337.8540
G2-D0 39.9280 39.9250 218.2000 218.2000
G2-J3 64.3180 64.3090 45.2460 45.2920
D0-J3 104.0600 104.0480 42.5460 42.5930
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 59525.216624978
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.759472
DEC -21.0041
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 67.195
HIERARCH ESO ISS PBL12 END 67.164
HIERARCH ESO ISS PBLA12 START 275.6
HIERARCH ESO ISS PBLA12 END 275.7
HIERARCH ESO ISS PBL13 START 94.85
HIERARCH ESO ISS PBL13 END 94.815
HIERARCH ESO ISS PBLA13 START 254.9
HIERARCH ESO ISS PBLA13 END 254.9
HIERARCH ESO ISS PBL14 START 56.056
HIERARCH ESO ISS PBL14 END 56.049
HIERARCH ESO ISS PBLA14 START 337.782
HIERARCH ESO ISS PBLA14 END 337.854
HIERARCH ESO ISS PBL23 START 39.928
HIERARCH ESO ISS PBL23 END 39.925
HIERARCH ESO ISS PBLA23 START 218.2
HIERARCH ESO ISS PBLA23 END 218.2
HIERARCH ESO ISS PBL24 START 64.318
HIERARCH ESO ISS PBL24 END 64.309
HIERARCH ESO ISS PBLA24 START 45.246
HIERARCH ESO ISS PBLA24 END 45.292
HIERARCH ESO ISS PBL34 START 104.06
HIERARCH ESO ISS PBL34 END 104.048
HIERARCH ESO ISS PBLA34 START 42.546
HIERARCH ESO ISS PBLA34 END 42.593
HIERARCH ESO ISS AMBI TAU0 START 0.00617
HIERARCH ESO ISS AMBI TAU0 END 0.00617
HIERARCH ESO ISS AMBI TEMP 12.31
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.5