Exposure
ID
PIONI.2025-09-25T01:43:41.267_1
Header ID
PIONI.2025-09-25T01:43:41.267
Date updated
2025-09-25 01:50:52 UTC+0000
Release date
2025-09-25 01:43:41 UTC+0000
UTC Start
2025-09-25 01:43:41.267
UTC End
2025-09-25 01:44:19.667
MJD Start
60943.0720054107
MJD End
60943.07244985514
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.012341
Ambient temperature (°C)
17.38
Seeing (arcsec)
0.42
Observation
ID
70478
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
52261
Name
HD170785
RA
277.803512
DEC
-0.44419
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 61.9040 61.7140 126.2000 126.4000
A0-J2 95.1140 94.8020 93.9000 93.9000
A0-K0 108.7240 108.4970 69.9290 69.8860
G1-J2 54.1280 54.0640 56.2000 56.1000
G1-K0 90.4720 90.4680 35.2240 35.2220
J2-K0 44.3580 44.3690 9.3680 9.4600
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 60943.0720054107
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803512
DEC -0.44419
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 61.904
HIERARCH ESO ISS PBL12 END 61.714
HIERARCH ESO ISS PBLA12 START 126.2
HIERARCH ESO ISS PBLA12 END 126.4
HIERARCH ESO ISS PBL13 START 95.114
HIERARCH ESO ISS PBL13 END 94.802
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 108.724
HIERARCH ESO ISS PBL14 END 108.497
HIERARCH ESO ISS PBLA14 START 69.929
HIERARCH ESO ISS PBLA14 END 69.886
HIERARCH ESO ISS PBL23 START 54.128
HIERARCH ESO ISS PBL23 END 54.064
HIERARCH ESO ISS PBLA23 START 56.2
HIERARCH ESO ISS PBLA23 END 56.1
HIERARCH ESO ISS PBL24 START 90.472
HIERARCH ESO ISS PBL24 END 90.468
HIERARCH ESO ISS PBLA24 START 35.224
HIERARCH ESO ISS PBLA24 END 35.222
HIERARCH ESO ISS PBL34 START 44.358
HIERARCH ESO ISS PBL34 END 44.369
HIERARCH ESO ISS PBLA34 START 9.368
HIERARCH ESO ISS PBLA34 END 9.46
HIERARCH ESO ISS AMBI TAU0 START 0.012341
HIERARCH ESO ISS AMBI TAU0 END 0.012341
HIERARCH ESO ISS AMBI TEMP 17.38
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.42