Exposure
ID
PIONI.2025-03-23T06:43:05.571_1
Header ID
PIONI.2025-03-23T06:43:05.571
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 06:43:05.571
UTC End
2025-03-23 06:43:31.171
MJD Start
60757.2799255946
MJD End
60757.2802218909
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 75.6540 75.7660 100.9000 100.9000
A0-J2 108.0850 108.2420 73.0000 73.1000
A0-K0 113.2000 113.3030 48.4570 48.5750
G1-J2 54.2460 54.2720 32.4000 32.5000
G1-K0 89.9270 89.9290 6.6600 6.7460
J2-K0 47.3570 47.3670 336.8070 336.8490
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 60757.2799255946
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 75.654
HIERARCH ESO ISS PBL12 END 75.766
HIERARCH ESO ISS PBLA12 START 100.9
HIERARCH ESO ISS PBLA12 END 100.9
HIERARCH ESO ISS PBL13 START 108.085
HIERARCH ESO ISS PBL13 END 108.242
HIERARCH ESO ISS PBLA13 START 73.0
HIERARCH ESO ISS PBLA13 END 73.1
HIERARCH ESO ISS PBL14 START 113.2
HIERARCH ESO ISS PBL14 END 113.303
HIERARCH ESO ISS PBLA14 START 48.457
HIERARCH ESO ISS PBLA14 END 48.575
HIERARCH ESO ISS PBL23 START 54.246
HIERARCH ESO ISS PBL23 END 54.272
HIERARCH ESO ISS PBLA23 START 32.4
HIERARCH ESO ISS PBLA23 END 32.5
HIERARCH ESO ISS PBL24 START 89.927
HIERARCH ESO ISS PBL24 END 89.929
HIERARCH ESO ISS PBLA24 START 6.66
HIERARCH ESO ISS PBLA24 END 6.746
HIERARCH ESO ISS PBL34 START 47.357
HIERARCH ESO ISS PBL34 END 47.367
HIERARCH ESO ISS PBLA34 START 336.807
HIERARCH ESO ISS PBLA34 END 336.849
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