Exposure
ID
PIONI.2025-07-21T06:16:22.171_1
Header ID
PIONI.2025-07-21T06:16:22.171
Date updated
2025-07-21 06:25:52 UTC+0000
Release date
2026-07-21 06:25:51 UTC+0000
UTC Start
2025-07-21 06:16:22.171
UTC End
2025-07-21 06:17:00.571
MJD Start
60877.2613677233
MJD End
60877.261812167744
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.007649
Ambient temperature (°C)
14.93
Seeing (arcsec)
0.495
Observation
ID
67036
Category
science
Program ID
115.28F2.002
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
49844
Name
HD172103
RA
279.578048
DEC
-1.11299
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 60.9600 60.7710 127.8000 128.0000
A0-J2 92.8410 92.5200 94.6000 94.7000
A0-K0 106.7250 106.4870 70.0160 69.9740
G1-J2 53.4930 53.4250 56.1000 56.0000
G1-K0 90.4070 90.3990 35.2190 35.2170
J2-K0 44.6700 44.6820 10.0000 10.0910
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60877.2613677233
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD172103
RA 279.578048
DEC -1.11299
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 60.96
HIERARCH ESO ISS PBL12 END 60.771
HIERARCH ESO ISS PBLA12 START 127.8
HIERARCH ESO ISS PBLA12 END 128.0
HIERARCH ESO ISS PBL13 START 92.841
HIERARCH ESO ISS PBL13 END 92.52
HIERARCH ESO ISS PBLA13 START 94.6
HIERARCH ESO ISS PBLA13 END 94.7
HIERARCH ESO ISS PBL14 START 106.725
HIERARCH ESO ISS PBL14 END 106.487
HIERARCH ESO ISS PBLA14 START 70.016
HIERARCH ESO ISS PBLA14 END 69.974
HIERARCH ESO ISS PBL23 START 53.493
HIERARCH ESO ISS PBL23 END 53.425
HIERARCH ESO ISS PBLA23 START 56.1
HIERARCH ESO ISS PBLA23 END 56.0
HIERARCH ESO ISS PBL24 START 90.407
HIERARCH ESO ISS PBL24 END 90.399
HIERARCH ESO ISS PBLA24 START 35.219
HIERARCH ESO ISS PBLA24 END 35.217
HIERARCH ESO ISS PBL34 START 44.67
HIERARCH ESO ISS PBL34 END 44.682
HIERARCH ESO ISS PBLA34 START 10.0
HIERARCH ESO ISS PBLA34 END 10.091
HIERARCH ESO ISS AMBI TAU0 START 0.007649
HIERARCH ESO ISS AMBI TAU0 END 0.007649
HIERARCH ESO ISS AMBI TEMP 14.93
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.54