Exposure
ID
PIONI.2025-10-29T05:17:45.018_1
Header ID
PIONI.2025-10-29T05:17:45.018
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 05:17:45.018
UTC End
2025-10-29 05:18:23.418
MJD Start
60977.2206599284
MJD End
60977.221104372846
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.00702
Ambient temperature (°C)
13.64
Seeing (arcsec)
0.39
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 90.5050 90.5070 113.7000 113.7000
A0-J2 125.9530 126.0540 93.9000 93.9000
A0-K0 117.6410 117.8120 73.6340 73.6390
G1-J2 50.9700 51.0540 57.0000 57.1000
G1-K0 75.6740 75.7440 23.3360 23.4390
J2-K0 43.6650 43.6420 342.9700 343.0470
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 60977.2206599284
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 90.505
HIERARCH ESO ISS PBL12 END 90.507
HIERARCH ESO ISS PBLA12 START 113.7
HIERARCH ESO ISS PBLA12 END 113.7
HIERARCH ESO ISS PBL13 START 125.953
HIERARCH ESO ISS PBL13 END 126.054
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 117.641
HIERARCH ESO ISS PBL14 END 117.812
HIERARCH ESO ISS PBLA14 START 73.634
HIERARCH ESO ISS PBLA14 END 73.639
HIERARCH ESO ISS PBL23 START 50.97
HIERARCH ESO ISS PBL23 END 51.054
HIERARCH ESO ISS PBLA23 START 57.0
HIERARCH ESO ISS PBLA23 END 57.1
HIERARCH ESO ISS PBL24 START 75.674
HIERARCH ESO ISS PBL24 END 75.744
HIERARCH ESO ISS PBLA24 START 23.336
HIERARCH ESO ISS PBLA24 END 23.439
HIERARCH ESO ISS PBL34 START 43.665
HIERARCH ESO ISS PBL34 END 43.642
HIERARCH ESO ISS PBLA34 START 342.97
HIERARCH ESO ISS PBLA34 END 343.047
HIERARCH ESO ISS AMBI TAU0 START 0.006953
HIERARCH ESO ISS AMBI TAU0 END 0.007087
HIERARCH ESO ISS AMBI TEMP 13.64
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.37