Exposure
ID
PIONI.2025-09-25T02:05:19.841_1
Header ID
PIONI.2025-09-25T02:05:19.841
Date updated
2025-09-25 02:10:57 UTC+0000
Release date
2025-09-25 02:05:19 UTC+0000
UTC Start
2025-09-25 02:05:19.841
UTC End
2025-09-25 02:05:58.241
MJD Start
60943.0870351982
MJD End
60943.08747964264
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.009397
Ambient temperature (°C)
17.39
Seeing (arcsec)
0.44
Observation
ID
70505
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
52282
Name
HD170817
RA
277.856057
DEC
-0.28448
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 56.7420 56.5530 129.9000 130.1000
A0-J2 86.5070 86.1720 94.1000 94.2000
A0-K0 102.4690 102.2180 68.5600 68.5050
G1-J2 52.3490 52.2760 54.8000 54.7000
G1-K0 90.2740 90.2610 35.0670 35.0560
J2-K0 44.6420 44.6560 11.7480 11.8340
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 60943.0870351982
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856057
DEC -0.28448
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 56.742
HIERARCH ESO ISS PBL12 END 56.553
HIERARCH ESO ISS PBLA12 START 129.9
HIERARCH ESO ISS PBLA12 END 130.1
HIERARCH ESO ISS PBL13 START 86.507
HIERARCH ESO ISS PBL13 END 86.172
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.2
HIERARCH ESO ISS PBL14 START 102.469
HIERARCH ESO ISS PBL14 END 102.218
HIERARCH ESO ISS PBLA14 START 68.56
HIERARCH ESO ISS PBLA14 END 68.505
HIERARCH ESO ISS PBL23 START 52.349
HIERARCH ESO ISS PBL23 END 52.276
HIERARCH ESO ISS PBLA23 START 54.8
HIERARCH ESO ISS PBLA23 END 54.7
HIERARCH ESO ISS PBL24 START 90.274
HIERARCH ESO ISS PBL24 END 90.261
HIERARCH ESO ISS PBLA24 START 35.067
HIERARCH ESO ISS PBLA24 END 35.056
HIERARCH ESO ISS PBL34 START 44.642
HIERARCH ESO ISS PBL34 END 44.656
HIERARCH ESO ISS PBLA34 START 11.748
HIERARCH ESO ISS PBLA34 END 11.834
HIERARCH ESO ISS AMBI TAU0 START 0.009397
HIERARCH ESO ISS AMBI TAU0 END 0.009397
HIERARCH ESO ISS AMBI TEMP 17.39
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.44