Exposure
ID
PIONI.2025-09-26T01:32:34.339_1
Header ID
PIONI.2025-09-26T01:32:34.339
Date updated
2025-09-26 01:40:52 UTC+0000
Release date
2025-09-26 01:32:34 UTC+0000
UTC Start
2025-09-26 01:32:34.339
UTC End
2025-09-26 01:33:12.739
MJD Start
60944.0642863326
MJD End
60944.06473077704
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0057665
Ambient temperature (°C)
12.78
Seeing (arcsec)
0.5900000000000001
Observation
ID
70505
Category
calibrator
Program ID
115.28F2.002
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52282
Name
HD170817
RA
277.856057
DEC
-0.28448
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 63.5140 63.3250 125.0000 125.1000
A0-J2 97.8720 97.5700 93.6000 93.6000
A0-K0 110.7870 110.5710 70.2040 70.1670
G1-J2 54.7170 54.6570 56.5000 56.5000
G1-K0 90.4830 90.4840 35.2190 35.2230
J2-K0 44.2010 44.2110 8.5330 8.6300
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60944.0642863326
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856057
DEC -0.28448
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 63.514
HIERARCH ESO ISS PBL12 END 63.325
HIERARCH ESO ISS PBLA12 START 125.0
HIERARCH ESO ISS PBLA12 END 125.1
HIERARCH ESO ISS PBL13 START 97.872
HIERARCH ESO ISS PBL13 END 97.57
HIERARCH ESO ISS PBLA13 START 93.6
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 110.787
HIERARCH ESO ISS PBL14 END 110.571
HIERARCH ESO ISS PBLA14 START 70.204
HIERARCH ESO ISS PBLA14 END 70.167
HIERARCH ESO ISS PBL23 START 54.717
HIERARCH ESO ISS PBL23 END 54.657
HIERARCH ESO ISS PBLA23 START 56.5
HIERARCH ESO ISS PBLA23 END 56.5
HIERARCH ESO ISS PBL24 START 90.483
HIERARCH ESO ISS PBL24 END 90.484
HIERARCH ESO ISS PBLA24 START 35.219
HIERARCH ESO ISS PBLA24 END 35.223
HIERARCH ESO ISS PBL34 START 44.201
HIERARCH ESO ISS PBL34 END 44.211
HIERARCH ESO ISS PBLA34 START 8.533
HIERARCH ESO ISS PBLA34 END 8.63
HIERARCH ESO ISS AMBI TAU0 START 0.005991
HIERARCH ESO ISS AMBI TAU0 END 0.005542
HIERARCH ESO ISS AMBI TEMP 12.78
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.62