Exposure
ID
PIONI.2025-09-25T01:45:22.133_1
Header ID
PIONI.2025-09-25T01:45:22.133
Date updated
2025-09-25 01:50:52 UTC+0000
Release date
2025-09-25 01:45:22 UTC+0000
UTC Start
2025-09-25 01:45:22.133
UTC End
2025-09-25 01:46:00.533
MJD Start
60943.0731728408
MJD End
60943.07361728524
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.011858500000000001
Ambient temperature (°C)
17.38
Seeing (arcsec)
0.41000000000000003
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 61.5120 61.3250 126.5000 126.6000
A0-J2 94.4690 94.1610 93.9000 93.9000
A0-K0 108.2550 108.0300 69.8410 69.7980
G1-J2 53.9950 53.9320 56.1000 56.0000
G1-K0 90.4650 90.4610 35.2200 35.2180
J2-K0 44.3820 44.3930 9.5570 9.6480
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 60943.0731728408
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 61.512
HIERARCH ESO ISS PBL12 END 61.325
HIERARCH ESO ISS PBLA12 START 126.5
HIERARCH ESO ISS PBLA12 END 126.6
HIERARCH ESO ISS PBL13 START 94.469
HIERARCH ESO ISS PBL13 END 94.161
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 108.255
HIERARCH ESO ISS PBL14 END 108.03
HIERARCH ESO ISS PBLA14 START 69.841
HIERARCH ESO ISS PBLA14 END 69.798
HIERARCH ESO ISS PBL23 START 53.995
HIERARCH ESO ISS PBL23 END 53.932
HIERARCH ESO ISS PBLA23 START 56.1
HIERARCH ESO ISS PBLA23 END 56.0
HIERARCH ESO ISS PBL24 START 90.465
HIERARCH ESO ISS PBL24 END 90.461
HIERARCH ESO ISS PBLA24 START 35.22
HIERARCH ESO ISS PBLA24 END 35.218
HIERARCH ESO ISS PBL34 START 44.382
HIERARCH ESO ISS PBL34 END 44.393
HIERARCH ESO ISS PBLA34 START 9.557
HIERARCH ESO ISS PBLA34 END 9.648
HIERARCH ESO ISS AMBI TAU0 START 0.012341
HIERARCH ESO ISS AMBI TAU0 END 0.011376
HIERARCH ESO ISS AMBI TEMP 17.38
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.4