Exposure
ID
PIONI.2025-10-10T00:21:06.653_1
Header ID
PIONI.2025-10-10T00:21:06.653
Date updated
2025-10-10 00:30:53 UTC+0000
Release date
2025-10-10 00:21:06 UTC+0000
UTC Start
2025-10-10 00:21:06.653
UTC End
2025-10-10 00:21:45.053
MJD Start
60958.0146603328
MJD End
60958.015104777245
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0015625
Ambient temperature (°C)
12.63
Seeing (arcsec)
1.21
Observation
ID
70884
Category
calibrator
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
52594
Name
HD 155870
RA
258.919365
DEC
-33.26787
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 79.3630 79.3080 154.7000 154.9000
A0-J2 96.6220 96.4280 130.9000 131.1000
A0-K0 86.2330 85.9560 101.2680 101.4160
G1-J2 40.0010 39.8770 77.8000 77.9000
G1-K0 74.7030 74.6000 42.7020 42.7270
J2-K0 47.8580 47.8510 13.9830 14.0640
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60958.0146603328
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 155870
RA 258.919365
DEC -33.26787
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 79.363
HIERARCH ESO ISS PBL12 END 79.308
HIERARCH ESO ISS PBLA12 START 154.7
HIERARCH ESO ISS PBLA12 END 154.9
HIERARCH ESO ISS PBL13 START 96.622
HIERARCH ESO ISS PBL13 END 96.428
HIERARCH ESO ISS PBLA13 START 130.9
HIERARCH ESO ISS PBLA13 END 131.1
HIERARCH ESO ISS PBL14 START 86.233
HIERARCH ESO ISS PBL14 END 85.956
HIERARCH ESO ISS PBLA14 START 101.268
HIERARCH ESO ISS PBLA14 END 101.416
HIERARCH ESO ISS PBL23 START 40.001
HIERARCH ESO ISS PBL23 END 39.877
HIERARCH ESO ISS PBLA23 START 77.8
HIERARCH ESO ISS PBLA23 END 77.9
HIERARCH ESO ISS PBL24 START 74.703
HIERARCH ESO ISS PBL24 END 74.6
HIERARCH ESO ISS PBLA24 START 42.702
HIERARCH ESO ISS PBLA24 END 42.727
HIERARCH ESO ISS PBL34 START 47.858
HIERARCH ESO ISS PBL34 END 47.851
HIERARCH ESO ISS PBLA34 START 13.983
HIERARCH ESO ISS PBLA34 END 14.064
HIERARCH ESO ISS AMBI TAU0 START 0.00151
HIERARCH ESO ISS AMBI TAU0 END 0.001615
HIERARCH ESO ISS AMBI TEMP 12.63
HIERARCH ESO ISS AMBI FWHM START 1.21
HIERARCH ESO ISS AMBI FWHM END 1.21