Exposure
ID
PIONI.2025-10-29T05:20:16.556_1
Header ID
PIONI.2025-10-29T05:20:16.556
Date updated
2025-10-29 05:26:12 UTC+0000
Release date
2026-10-29 05:26:12 UTC+0000
UTC Start
2025-10-29 05:20:16.555
UTC End
2025-10-29 05:20:54.955
MJD Start
60977.2224138356
MJD End
60977.222858280045
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006011
Ambient temperature (°C)
13.62
Seeing (arcsec)
0.53
Observation
ID
71040
Category
science
Program ID
116.292S.001
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
MAHY / SANA / LE BOUQUIN / FROST / BORDIER
Target
ID
52720
Name
40 Tau
RA
60.934742
DEC
5.43559
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 90.5080 90.5070 113.6000 113.6000
A0-J2 126.2630 126.3580 93.8000 93.8000
A0-K0 118.1680 118.3310 73.6480 73.6520
G1-J2 51.2290 51.3100 57.2000 57.2000
G1-K0 75.8920 75.9610 23.6540 23.7530
J2-K0 43.5950 43.5740 343.2080 343.2830
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60977.2224138356
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 40 Tau
RA 60.934742
DEC 5.43559
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 90.508
HIERARCH ESO ISS PBL12 END 90.507
HIERARCH ESO ISS PBLA12 START 113.6
HIERARCH ESO ISS PBLA12 END 113.6
HIERARCH ESO ISS PBL13 START 126.263
HIERARCH ESO ISS PBL13 END 126.358
HIERARCH ESO ISS PBLA13 START 93.8
HIERARCH ESO ISS PBLA13 END 93.8
HIERARCH ESO ISS PBL14 START 118.168
HIERARCH ESO ISS PBL14 END 118.331
HIERARCH ESO ISS PBLA14 START 73.648
HIERARCH ESO ISS PBLA14 END 73.652
HIERARCH ESO ISS PBL23 START 51.229
HIERARCH ESO ISS PBL23 END 51.31
HIERARCH ESO ISS PBLA23 START 57.2
HIERARCH ESO ISS PBLA23 END 57.2
HIERARCH ESO ISS PBL24 START 75.892
HIERARCH ESO ISS PBL24 END 75.961
HIERARCH ESO ISS PBLA24 START 23.654
HIERARCH ESO ISS PBLA24 END 23.753
HIERARCH ESO ISS PBL34 START 43.595
HIERARCH ESO ISS PBL34 END 43.574
HIERARCH ESO ISS PBLA34 START 343.208
HIERARCH ESO ISS PBLA34 END 343.283
HIERARCH ESO ISS AMBI TAU0 START 0.006011
HIERARCH ESO ISS AMBI TAU0 END 0.006011
HIERARCH ESO ISS AMBI TEMP 13.62
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.53