Exposure
ID
PIONI.2025-09-26T01:13:38.481_1
Header ID
PIONI.2025-09-26T01:13:38.481
Date updated
2025-09-26 01:21:13 UTC+0000
Release date
2025-09-26 01:13:38 UTC+0000
UTC Start
2025-09-26 01:13:38.481
UTC End
2025-09-26 01:14:16.881
MJD Start
60944.0511398278
MJD End
60944.051584272245
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005934
Ambient temperature (°C)
13.21
Seeing (arcsec)
0.55
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 67.8470 67.6670 122.6000 122.7000
A0-J2 104.4490 104.1770 93.5000 93.5000
A0-K0 115.3520 115.1640 71.0760 71.0490
G1-J2 55.9290 55.8800 57.3000 57.3000
G1-K0 90.3740 90.3830 35.0840 35.0970
J2-K0 44.0400 44.0480 6.3320 6.4310
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 60944.0511398278
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 67.847
HIERARCH ESO ISS PBL12 END 67.667
HIERARCH ESO ISS PBLA12 START 122.6
HIERARCH ESO ISS PBLA12 END 122.7
HIERARCH ESO ISS PBL13 START 104.449
HIERARCH ESO ISS PBL13 END 104.177
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.5
HIERARCH ESO ISS PBL14 START 115.352
HIERARCH ESO ISS PBL14 END 115.164
HIERARCH ESO ISS PBLA14 START 71.076
HIERARCH ESO ISS PBLA14 END 71.049
HIERARCH ESO ISS PBL23 START 55.929
HIERARCH ESO ISS PBL23 END 55.88
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.3
HIERARCH ESO ISS PBL24 START 90.374
HIERARCH ESO ISS PBL24 END 90.383
HIERARCH ESO ISS PBLA24 START 35.084
HIERARCH ESO ISS PBLA24 END 35.097
HIERARCH ESO ISS PBL34 START 44.04
HIERARCH ESO ISS PBL34 END 44.048
HIERARCH ESO ISS PBLA34 START 6.332
HIERARCH ESO ISS PBLA34 END 6.431
HIERARCH ESO ISS AMBI TAU0 START 0.005934
HIERARCH ESO ISS AMBI TAU0 END 0.005934
HIERARCH ESO ISS AMBI TEMP 13.21
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.55