Exposure
ID
PIONI.2025-09-25T01:42:50.744_1
Header ID
PIONI.2025-09-25T01:42:50.744
Date updated
2025-09-25 01:50:52 UTC+0000
Release date
2025-09-25 01:42:50 UTC+0000
UTC Start
2025-09-25 01:42:50.744
UTC End
2025-09-25 01:43:29.144
MJD Start
60943.0714206486
MJD End
60943.07186509304
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.012131
Ambient temperature (°C)
17.39
Seeing (arcsec)
0.395
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 62.1020 61.9120 126.1000 126.2000
A0-J2 95.4380 95.1270 93.9000 93.9000
A0-K0 108.9590 108.7340 69.9720 69.9310
G1-J2 54.1940 54.1300 56.2000 56.2000
G1-K0 90.4750 90.4720 35.2240 35.2240
J2-K0 44.3460 44.3570 9.2710 9.3640
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 60943.0714206486
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 62.102
HIERARCH ESO ISS PBL12 END 61.912
HIERARCH ESO ISS PBLA12 START 126.1
HIERARCH ESO ISS PBLA12 END 126.2
HIERARCH ESO ISS PBL13 START 95.438
HIERARCH ESO ISS PBL13 END 95.127
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 108.959
HIERARCH ESO ISS PBL14 END 108.734
HIERARCH ESO ISS PBLA14 START 69.972
HIERARCH ESO ISS PBLA14 END 69.931
HIERARCH ESO ISS PBL23 START 54.194
HIERARCH ESO ISS PBL23 END 54.13
HIERARCH ESO ISS PBLA23 START 56.2
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 90.475
HIERARCH ESO ISS PBL24 END 90.472
HIERARCH ESO ISS PBLA24 START 35.224
HIERARCH ESO ISS PBLA24 END 35.224
HIERARCH ESO ISS PBL34 START 44.346
HIERARCH ESO ISS PBL34 END 44.357
HIERARCH ESO ISS PBLA34 START 9.271
HIERARCH ESO ISS PBLA34 END 9.364
HIERARCH ESO ISS AMBI TAU0 START 0.011921
HIERARCH ESO ISS AMBI TAU0 END 0.012341
HIERARCH ESO ISS AMBI TEMP 17.39
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.42