Exposure
ID
PIONI.2025-10-31T05:15:57.578_1
Header ID
PIONI.2025-10-31T05:15:57.578
Date updated
2025-10-31 05:25:48 UTC+0000
Release date
2026-10-31 05:25:47 UTC+0000
UTC Start
2025-10-31 05:15:57.578
UTC End
2025-10-31 05:16:35.978
MJD Start
60979.2194164144
MJD End
60979.219860858844
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.003692
Ambient temperature (°C)
13.19
Seeing (arcsec)
0.57
Observation
ID
71073
Category
science
Program ID
116.290A.001
Program Title
CONSTRAINING ASTEROSEISMIC MODELS OF MASSIVE OB STARS USING HIGH-PRECISION INTERFEROMETRY
Program Type
Normal
PI / COI
VRANCKEN / DESHMUKH / SANA / TKACHENKO / AERTS / KLIAPETS
Target
ID
52753
Name
tau08 Eri
RA
58.426892
DEC
-24.61227
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.5010 89.5410 112.0000 112.1000
A0-J2 127.4990 127.5670 88.5000 88.6000
A0-K0 126.4740 126.5320 66.4520 66.5480
G1-J2 57.7240 57.7430 50.4000 50.5000
G1-K0 90.2770 90.2840 21.4100 21.5070
J2-K0 48.6250 48.6260 346.3030 346.3820
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.290A.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60979.2194164144
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau08 Eri
RA 58.426892
DEC -24.61227
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 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 89.501
HIERARCH ESO ISS PBL12 END 89.541
HIERARCH ESO ISS PBLA12 START 112.0
HIERARCH ESO ISS PBLA12 END 112.1
HIERARCH ESO ISS PBL13 START 127.499
HIERARCH ESO ISS PBL13 END 127.567
HIERARCH ESO ISS PBLA13 START 88.5
HIERARCH ESO ISS PBLA13 END 88.6
HIERARCH ESO ISS PBL14 START 126.474
HIERARCH ESO ISS PBL14 END 126.532
HIERARCH ESO ISS PBLA14 START 66.452
HIERARCH ESO ISS PBLA14 END 66.548
HIERARCH ESO ISS PBL23 START 57.724
HIERARCH ESO ISS PBL23 END 57.743
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.5
HIERARCH ESO ISS PBL24 START 90.277
HIERARCH ESO ISS PBL24 END 90.284
HIERARCH ESO ISS PBLA24 START 21.41
HIERARCH ESO ISS PBLA24 END 21.507
HIERARCH ESO ISS PBL34 START 48.625
HIERARCH ESO ISS PBL34 END 48.626
HIERARCH ESO ISS PBLA34 START 346.303
HIERARCH ESO ISS PBLA34 END 346.382
HIERARCH ESO ISS AMBI TAU0 START 0.003692
HIERARCH ESO ISS AMBI TAU0 END 0.003692
HIERARCH ESO ISS AMBI TEMP 13.19
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57