Exposure
ID
PIONI.2025-10-10T00:23:38.597_1
Header ID
PIONI.2025-10-10T00:23:38.597
Date updated
2025-10-10 00:30:53 UTC+0000
Release date
2025-10-10 00:23:38 UTC+0000
UTC Start
2025-10-10 00:23:38.598
UTC End
2025-10-10 00:24:16.998
MJD Start
60958.0164189548
MJD End
60958.01686339924
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.00153
Ambient temperature (°C)
12.61
Seeing (arcsec)
1.27
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 79.1920 79.1380 155.3000 155.5000
A0-J2 96.0220 95.8290 131.6000 131.8000
A0-K0 85.3720 85.0930 101.7340 101.8840
G1-J2 39.6160 39.4920 78.0000 78.1000
G1-K0 74.3810 74.2760 42.7820 42.8070
J2-K0 47.8380 47.8310 14.2370 14.3170
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 60958.0164189548
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 79.192
HIERARCH ESO ISS PBL12 END 79.138
HIERARCH ESO ISS PBLA12 START 155.3
HIERARCH ESO ISS PBLA12 END 155.5
HIERARCH ESO ISS PBL13 START 96.022
HIERARCH ESO ISS PBL13 END 95.829
HIERARCH ESO ISS PBLA13 START 131.6
HIERARCH ESO ISS PBLA13 END 131.8
HIERARCH ESO ISS PBL14 START 85.372
HIERARCH ESO ISS PBL14 END 85.093
HIERARCH ESO ISS PBLA14 START 101.734
HIERARCH ESO ISS PBLA14 END 101.884
HIERARCH ESO ISS PBL23 START 39.616
HIERARCH ESO ISS PBL23 END 39.492
HIERARCH ESO ISS PBLA23 START 78.0
HIERARCH ESO ISS PBLA23 END 78.1
HIERARCH ESO ISS PBL24 START 74.381
HIERARCH ESO ISS PBL24 END 74.276
HIERARCH ESO ISS PBLA24 START 42.782
HIERARCH ESO ISS PBLA24 END 42.807
HIERARCH ESO ISS PBL34 START 47.838
HIERARCH ESO ISS PBL34 END 47.831
HIERARCH ESO ISS PBLA34 START 14.237
HIERARCH ESO ISS PBLA34 END 14.317
HIERARCH ESO ISS AMBI TAU0 START 0.00153
HIERARCH ESO ISS AMBI TAU0 END 0.00153
HIERARCH ESO ISS AMBI TEMP 12.61
HIERARCH ESO ISS AMBI FWHM START 1.27
HIERARCH ESO ISS AMBI FWHM END 1.27