Exposure
ID
PIONI.2025-09-26T01:33:24.827_1
Header ID
PIONI.2025-09-26T01:33:24.827
Date updated
2025-09-26 01:40:52 UTC+0000
Release date
2025-09-26 01:33:24 UTC+0000
UTC Start
2025-09-26 01:33:24.827
UTC End
2025-09-26 01:34:03.227
MJD Start
60944.0648706816
MJD End
60944.06531512604
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0058720000000000005
Ambient temperature (°C)
12.75
Seeing (arcsec)
0.615
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 63.3180 63.1320 125.1000 125.2000
A0-J2 97.5580 97.2610 93.6000 93.7000
A0-K0 110.5620 110.3500 70.1660 70.1270
G1-J2 54.6550 54.5960 56.5000 56.4000
G1-K0 90.4840 90.4840 35.2230 35.2250
J2-K0 44.2120 44.2230 8.6330 8.7250
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 60944.0648706816
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 63.318
HIERARCH ESO ISS PBL12 END 63.132
HIERARCH ESO ISS PBLA12 START 125.1
HIERARCH ESO ISS PBLA12 END 125.2
HIERARCH ESO ISS PBL13 START 97.558
HIERARCH ESO ISS PBL13 END 97.261
HIERARCH ESO ISS PBLA13 START 93.6
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 110.562
HIERARCH ESO ISS PBL14 END 110.35
HIERARCH ESO ISS PBLA14 START 70.166
HIERARCH ESO ISS PBLA14 END 70.127
HIERARCH ESO ISS PBL23 START 54.655
HIERARCH ESO ISS PBL23 END 54.596
HIERARCH ESO ISS PBLA23 START 56.5
HIERARCH ESO ISS PBLA23 END 56.4
HIERARCH ESO ISS PBL24 START 90.484
HIERARCH ESO ISS PBL24 END 90.484
HIERARCH ESO ISS PBLA24 START 35.223
HIERARCH ESO ISS PBLA24 END 35.225
HIERARCH ESO ISS PBL34 START 44.212
HIERARCH ESO ISS PBL34 END 44.223
HIERARCH ESO ISS PBLA34 START 8.633
HIERARCH ESO ISS PBLA34 END 8.725
HIERARCH ESO ISS AMBI TAU0 START 0.005542
HIERARCH ESO ISS AMBI TAU0 END 0.006202
HIERARCH ESO ISS AMBI TEMP 12.75
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.61