Exposure
ID
PIONI.2025-09-24T01:54:35.980_1
Header ID
PIONI.2025-09-24T01:54:35.980
Date updated
2025-09-24 02:00:58 UTC+0000
Release date
2025-09-24 01:54:35 UTC+0000
UTC Start
2025-09-24 01:54:35.980
UTC End
2025-09-24 01:55:14.380
MJD Start
60942.0795830963
MJD End
60942.080027540746
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006187
Ambient temperature (°C)
15.38
Seeing (arcsec)
0.59
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 60.2690 60.0810 127.4000 127.5000
A0-J2 92.4010 92.0850 94.0000 94.0000
A0-K0 106.7430 106.5110 69.5530 69.5080
G1-J2 53.5660 53.5000 55.8000 55.7000
G1-K0 90.4310 90.4250 35.2010 35.1970
J2-K0 44.4610 44.4730 10.1530 10.2420
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 60942.0795830963
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 60.269
HIERARCH ESO ISS PBL12 END 60.081
HIERARCH ESO ISS PBLA12 START 127.4
HIERARCH ESO ISS PBLA12 END 127.5
HIERARCH ESO ISS PBL13 START 92.401
HIERARCH ESO ISS PBL13 END 92.085
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 106.743
HIERARCH ESO ISS PBL14 END 106.511
HIERARCH ESO ISS PBLA14 START 69.553
HIERARCH ESO ISS PBLA14 END 69.508
HIERARCH ESO ISS PBL23 START 53.566
HIERARCH ESO ISS PBL23 END 53.5
HIERARCH ESO ISS PBLA23 START 55.8
HIERARCH ESO ISS PBLA23 END 55.7
HIERARCH ESO ISS PBL24 START 90.431
HIERARCH ESO ISS PBL24 END 90.425
HIERARCH ESO ISS PBLA24 START 35.201
HIERARCH ESO ISS PBLA24 END 35.197
HIERARCH ESO ISS PBL34 START 44.461
HIERARCH ESO ISS PBL34 END 44.473
HIERARCH ESO ISS PBLA34 START 10.153
HIERARCH ESO ISS PBLA34 END 10.242
HIERARCH ESO ISS AMBI TAU0 START 0.006187
HIERARCH ESO ISS AMBI TAU0 END 0.006187
HIERARCH ESO ISS AMBI TEMP 15.38
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59