Exposure
ID
PIONI.2025-12-15T03:43:00.471_1
Header ID
PIONI.2025-12-15T03:43:00.471
Date updated
2025-12-15 03:51:37 UTC+0000
Release date
2026-12-15 03:51:36 UTC+0000
UTC Start
2025-12-15 03:43:00.471
UTC End
2025-12-15 03:43:38.871
MJD Start
61024.1548665641
MJD End
61024.155311008544
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002732
Ambient temperature (°C)
10.02
Seeing (arcsec)
0.64
Observation
ID
72295
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
53698
Name
HD 43955
RA
94.555979
DEC
-19.96693
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 84.9940 85.0930 108.6000 108.6000
A0-J2 118.3940 118.5660 83.8000 83.9000
A0-K0 117.5400 117.6870 60.0590 60.1700
G1-J2 54.4230 54.4710 43.0000 43.2000
G1-K0 88.3520 88.3680 13.9430 14.0540
J2-K0 48.6350 48.6360 340.9700 341.0360
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 61024.1548665641
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 43955
RA 94.555979
DEC -19.96693
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 84.994
HIERARCH ESO ISS PBL12 END 85.093
HIERARCH ESO ISS PBLA12 START 108.6
HIERARCH ESO ISS PBLA12 END 108.6
HIERARCH ESO ISS PBL13 START 118.394
HIERARCH ESO ISS PBL13 END 118.566
HIERARCH ESO ISS PBLA13 START 83.8
HIERARCH ESO ISS PBLA13 END 83.9
HIERARCH ESO ISS PBL14 START 117.54
HIERARCH ESO ISS PBL14 END 117.687
HIERARCH ESO ISS PBLA14 START 60.059
HIERARCH ESO ISS PBLA14 END 60.17
HIERARCH ESO ISS PBL23 START 54.423
HIERARCH ESO ISS PBL23 END 54.471
HIERARCH ESO ISS PBLA23 START 43.0
HIERARCH ESO ISS PBLA23 END 43.2
HIERARCH ESO ISS PBL24 START 88.352
HIERARCH ESO ISS PBL24 END 88.368
HIERARCH ESO ISS PBLA24 START 13.943
HIERARCH ESO ISS PBLA24 END 14.054
HIERARCH ESO ISS PBL34 START 48.635
HIERARCH ESO ISS PBL34 END 48.636
HIERARCH ESO ISS PBLA34 START 340.97
HIERARCH ESO ISS PBLA34 END 341.036
HIERARCH ESO ISS AMBI TAU0 START 0.002732
HIERARCH ESO ISS AMBI TAU0 END 0.002732
HIERARCH ESO ISS AMBI TEMP 10.02
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64