Exposure
ID
PIONI.2025-03-23T06:43:43.277_1
Header ID
PIONI.2025-03-23T06:43:43.277
Date updated
2025-03-23 06:50:57 UTC+0000
Release date
2026-03-23 06:50:57 UTC+0000
UTC Start
2025-03-23 06:43:43.276
UTC End
2025-03-23 06:44:08.876
MJD Start
60757.280361996
MJD End
60757.2806582923
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003499
Ambient temperature (°C)
14.09
Seeing (arcsec)
0.69
Observation
ID
65830
Category
science
Program ID
114.27FM.001
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
MAHY / SANA / FROST / TOONEN / BORDIER / LE BOUQUIN / SHENAR
Target
ID
48991
Name
tau_Sco
RA
248.96931
DEC
-28.21614
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 75.7720 75.8850 100.9000 101.0000
A0-J2 108.2500 108.4060 73.1000 73.2000
A0-K0 113.3090 113.4120 48.5810 48.6980
G1-J2 54.2730 54.3000 32.5000 32.7000
G1-K0 89.9300 89.9320 6.7510 6.8370
J2-K0 47.3670 47.3770 336.8520 336.8940
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.27FM.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60757.280361996
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau_Sco
RA 248.96931
DEC -28.21614
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 75.772
HIERARCH ESO ISS PBL12 END 75.885
HIERARCH ESO ISS PBLA12 START 100.9
HIERARCH ESO ISS PBLA12 END 101.0
HIERARCH ESO ISS PBL13 START 108.25
HIERARCH ESO ISS PBL13 END 108.406
HIERARCH ESO ISS PBLA13 START 73.1
HIERARCH ESO ISS PBLA13 END 73.2
HIERARCH ESO ISS PBL14 START 113.309
HIERARCH ESO ISS PBL14 END 113.412
HIERARCH ESO ISS PBLA14 START 48.581
HIERARCH ESO ISS PBLA14 END 48.698
HIERARCH ESO ISS PBL23 START 54.273
HIERARCH ESO ISS PBL23 END 54.3
HIERARCH ESO ISS PBLA23 START 32.5
HIERARCH ESO ISS PBLA23 END 32.7
HIERARCH ESO ISS PBL24 START 89.93
HIERARCH ESO ISS PBL24 END 89.932
HIERARCH ESO ISS PBLA24 START 6.751
HIERARCH ESO ISS PBLA24 END 6.837
HIERARCH ESO ISS PBL34 START 47.367
HIERARCH ESO ISS PBL34 END 47.377
HIERARCH ESO ISS PBLA34 START 336.852
HIERARCH ESO ISS PBLA34 END 336.894
HIERARCH ESO ISS AMBI TAU0 START 0.003499
HIERARCH ESO ISS AMBI TAU0 END 0.003499
HIERARCH ESO ISS AMBI TEMP 14.09
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.69