Exposure
ID
PIONI.2025-10-29T06:57:26.024_1
Header ID
PIONI.2025-10-29T06:57:26.024
Date updated
2025-10-29 07:06:07 UTC+0000
Release date
2026-10-29 07:06:07 UTC+0000
UTC Start
2025-10-29 06:57:26.024
UTC End
2025-10-29 06:59:08.424
MJD Start
60977.2898845389
MJD End
60977.29106972409
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.006309
Ambient temperature (°C)
12.54
Seeing (arcsec)
0.56
Observation
ID
71046
Category
science
Program ID
116.290A.002
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
52726
Name
HD 33647
RA
77.921213
DEC
0.51458
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 90.1830 90.1220 113.5000 113.6000
A0-J2 128.6980 128.7910 92.6000 92.6000
A0-K0 124.1320 124.3730 72.3990 72.4300
G1-J2 54.8870 55.0200 56.7000 56.8000
G1-K0 81.7340 81.8730 25.8500 26.0470
J2-K0 44.6250 44.5880 346.7280 346.9230
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.290A.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60977.2898845389
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 33647
RA 77.921213
DEC 0.51458
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 0.002
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 90.183
HIERARCH ESO ISS PBL12 END 90.122
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.6
HIERARCH ESO ISS PBL13 START 128.698
HIERARCH ESO ISS PBL13 END 128.791
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 124.132
HIERARCH ESO ISS PBL14 END 124.373
HIERARCH ESO ISS PBLA14 START 72.399
HIERARCH ESO ISS PBLA14 END 72.43
HIERARCH ESO ISS PBL23 START 54.887
HIERARCH ESO ISS PBL23 END 55.02
HIERARCH ESO ISS PBLA23 START 56.7
HIERARCH ESO ISS PBLA23 END 56.8
HIERARCH ESO ISS PBL24 START 81.734
HIERARCH ESO ISS PBL24 END 81.873
HIERARCH ESO ISS PBLA24 START 25.85
HIERARCH ESO ISS PBLA24 END 26.047
HIERARCH ESO ISS PBL34 START 44.625
HIERARCH ESO ISS PBL34 END 44.588
HIERARCH ESO ISS PBLA34 START 346.728
HIERARCH ESO ISS PBLA34 END 346.923
HIERARCH ESO ISS AMBI TAU0 START 0.006309
HIERARCH ESO ISS AMBI TAU0 END 0.006309
HIERARCH ESO ISS AMBI TEMP 12.54
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.52