Exposure
ID
PIONI.2025-03-01T06:31:23.848_1
Header ID
PIONI.2025-03-01T06:31:23.848
Date updated
2025-03-01 06:35:43 UTC+0000
Release date
2026-03-01 06:35:43 UTC+0000
UTC Start
2025-03-01 06:31:23.848
UTC End
2025-03-01 06:31:49.448
MJD Start
60735.2718038019
MJD End
60735.2721000982
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005888
Ambient temperature (°C)
15.27
Seeing (arcsec)
0.65
Observation
ID
64892
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
48325
Name
alf_Vir
RA
201.296871
DEC
-11.16149
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 89.7300 89.7580 112.6000 112.6000
A0-J2 125.4440 125.5230 89.9000 89.9000
A0-K0 121.7470 121.8410 67.5720 67.6190
G1-J2 54.9590 54.9980 50.8000 50.9000
G1-K0 86.1660 86.1910 20.1470 20.2210
J2-K0 47.9220 47.9160 344.3760 344.4300
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 60735.2718038019
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME alf_Vir
RA 201.296871
DEC -11.16149
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 89.73
HIERARCH ESO ISS PBL12 END 89.758
HIERARCH ESO ISS PBLA12 START 112.6
HIERARCH ESO ISS PBLA12 END 112.6
HIERARCH ESO ISS PBL13 START 125.444
HIERARCH ESO ISS PBL13 END 125.523
HIERARCH ESO ISS PBLA13 START 89.9
HIERARCH ESO ISS PBLA13 END 89.9
HIERARCH ESO ISS PBL14 START 121.747
HIERARCH ESO ISS PBL14 END 121.841
HIERARCH ESO ISS PBLA14 START 67.572
HIERARCH ESO ISS PBLA14 END 67.619
HIERARCH ESO ISS PBL23 START 54.959
HIERARCH ESO ISS PBL23 END 54.998
HIERARCH ESO ISS PBLA23 START 50.8
HIERARCH ESO ISS PBLA23 END 50.9
HIERARCH ESO ISS PBL24 START 86.166
HIERARCH ESO ISS PBL24 END 86.191
HIERARCH ESO ISS PBLA24 START 20.147
HIERARCH ESO ISS PBLA24 END 20.221
HIERARCH ESO ISS PBL34 START 47.922
HIERARCH ESO ISS PBL34 END 47.916
HIERARCH ESO ISS PBLA34 START 344.376
HIERARCH ESO ISS PBLA34 END 344.43
HIERARCH ESO ISS AMBI TAU0 START 0.005888
HIERARCH ESO ISS AMBI TAU0 END 0.005888
HIERARCH ESO ISS AMBI TEMP 15.27
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.65