Exposure
ID
PIONI.2025-10-09T00:47:31.330_1
Header ID
PIONI.2025-10-09T00:47:31.330
Date updated
2025-10-09 00:55:56 UTC+0000
Release date
2025-10-09 00:47:31 UTC+0000
UTC Start
2025-10-09 00:47:31.331
UTC End
2025-10-09 00:48:09.731
MJD Start
60957.0330015118
MJD End
60957.033445956244
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0047445000000000005
Ambient temperature (°C)
12.79
Seeing (arcsec)
0.73
Observation
ID
70861
Category
calibrator
Program ID
116.292S.002
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
52574
Name
HD_155870
RA
258.919346
DEC
-33.26785
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 77.9540 77.9090 160.3000 160.5000
A0-J2 91.3790 91.1980 137.1000 137.3000
A0-K0 78.4060 78.1210 105.6690 105.8380
G1-J2 36.4620 36.3320 79.8000 79.9000
G1-K0 71.7230 71.6130 43.2990 43.3150
J2-K0 47.6590 47.6510 16.1980 16.2750
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60957.0330015118
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD_155870
RA 258.919346
DEC -33.26785
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 77.954
HIERARCH ESO ISS PBL12 END 77.909
HIERARCH ESO ISS PBLA12 START 160.3
HIERARCH ESO ISS PBLA12 END 160.5
HIERARCH ESO ISS PBL13 START 91.379
HIERARCH ESO ISS PBL13 END 91.198
HIERARCH ESO ISS PBLA13 START 137.1
HIERARCH ESO ISS PBLA13 END 137.3
HIERARCH ESO ISS PBL14 START 78.406
HIERARCH ESO ISS PBL14 END 78.121
HIERARCH ESO ISS PBLA14 START 105.669
HIERARCH ESO ISS PBLA14 END 105.838
HIERARCH ESO ISS PBL23 START 36.462
HIERARCH ESO ISS PBL23 END 36.332
HIERARCH ESO ISS PBLA23 START 79.8
HIERARCH ESO ISS PBLA23 END 79.9
HIERARCH ESO ISS PBL24 START 71.723
HIERARCH ESO ISS PBL24 END 71.613
HIERARCH ESO ISS PBLA24 START 43.299
HIERARCH ESO ISS PBLA24 END 43.315
HIERARCH ESO ISS PBL34 START 47.659
HIERARCH ESO ISS PBL34 END 47.651
HIERARCH ESO ISS PBLA34 START 16.198
HIERARCH ESO ISS PBLA34 END 16.275
HIERARCH ESO ISS AMBI TAU0 START 0.004652
HIERARCH ESO ISS AMBI TAU0 END 0.004837
HIERARCH ESO ISS AMBI TEMP 12.79
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.69