Exposure
ID
PIONI.2025-07-23T04:31:35.735_1
Header ID
PIONI.2025-07-23T04:31:35.735
Date updated
2025-07-23 04:35:58 UTC+0000
Release date
2025-07-23 04:31:35 UTC+0000
UTC Start
2025-07-23 04:31:35.735
UTC End
2025-07-23 04:32:14.135
MJD Start
60879.1886080382
MJD End
60879.189052482645
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0028055
Ambient temperature (°C)
13.39
Seeing (arcsec)
0.595
Observation
ID
68893
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51256
Name
HD170785
RA
277.803513
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 79.2340 79.0950 117.4000 117.4000
A0-J2 120.1100 119.9390 92.9000 92.9000
A0-K0 125.2110 125.1210 72.5110 72.5020
G1-J2 58.0950 58.0820 58.6000 58.6000
G1-K0 88.8220 88.8560 33.5200 33.5580
J2-K0 43.7780 43.7770 359.3020 359.4050
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 60879.1886080382
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803513
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 79.234
HIERARCH ESO ISS PBL12 END 79.095
HIERARCH ESO ISS PBLA12 START 117.4
HIERARCH ESO ISS PBLA12 END 117.4
HIERARCH ESO ISS PBL13 START 120.11
HIERARCH ESO ISS PBL13 END 119.939
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 125.211
HIERARCH ESO ISS PBL14 END 125.121
HIERARCH ESO ISS PBLA14 START 72.511
HIERARCH ESO ISS PBLA14 END 72.502
HIERARCH ESO ISS PBL23 START 58.095
HIERARCH ESO ISS PBL23 END 58.082
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 88.822
HIERARCH ESO ISS PBL24 END 88.856
HIERARCH ESO ISS PBLA24 START 33.52
HIERARCH ESO ISS PBLA24 END 33.558
HIERARCH ESO ISS PBL34 START 43.778
HIERARCH ESO ISS PBL34 END 43.777
HIERARCH ESO ISS PBLA34 START 359.302
HIERARCH ESO ISS PBLA34 END 359.405
HIERARCH ESO ISS AMBI TAU0 START 0.00319
HIERARCH ESO ISS AMBI TAU0 END 0.002421
HIERARCH ESO ISS AMBI TEMP 13.39
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.58