Exposure
ID
PIONI.2025-03-23T06:42:28.001_1
Header ID
PIONI.2025-03-23T06:42:28.001
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 06:42:28.001
UTC End
2025-03-23 06:42:53.601
MJD Start
60757.2794907517
MJD End
60757.279787048
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003499
Ambient temperature (°C)
14.03
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 75.5380 75.6500 100.8000 100.9000
A0-J2 107.9240 108.0810 72.9000 73.0000
A0-K0 113.0940 113.1970 48.3380 48.4560
G1-J2 54.2190 54.2450 32.3000 32.4000
G1-K0 89.9240 89.9270 6.5730 6.6590
J2-K0 47.3460 47.3560 336.7650 336.8070
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 60757.2794907517
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 75.538
HIERARCH ESO ISS PBL12 END 75.65
HIERARCH ESO ISS PBLA12 START 100.8
HIERARCH ESO ISS PBLA12 END 100.9
HIERARCH ESO ISS PBL13 START 107.924
HIERARCH ESO ISS PBL13 END 108.081
HIERARCH ESO ISS PBLA13 START 72.9
HIERARCH ESO ISS PBLA13 END 73.0
HIERARCH ESO ISS PBL14 START 113.094
HIERARCH ESO ISS PBL14 END 113.197
HIERARCH ESO ISS PBLA14 START 48.338
HIERARCH ESO ISS PBLA14 END 48.456
HIERARCH ESO ISS PBL23 START 54.219
HIERARCH ESO ISS PBL23 END 54.245
HIERARCH ESO ISS PBLA23 START 32.3
HIERARCH ESO ISS PBLA23 END 32.4
HIERARCH ESO ISS PBL24 START 89.924
HIERARCH ESO ISS PBL24 END 89.927
HIERARCH ESO ISS PBLA24 START 6.573
HIERARCH ESO ISS PBLA24 END 6.659
HIERARCH ESO ISS PBL34 START 47.346
HIERARCH ESO ISS PBL34 END 47.356
HIERARCH ESO ISS PBLA34 START 336.765
HIERARCH ESO ISS PBLA34 END 336.807
HIERARCH ESO ISS AMBI TAU0 START 0.003499
HIERARCH ESO ISS AMBI TAU0 END 0.003499
HIERARCH ESO ISS AMBI TEMP 14.03
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.69