Exposure
ID
PIONI.2025-09-24T01:52:54.906_1
Header ID
PIONI.2025-09-24T01:52:54.906
Date updated
2025-09-24 02:00:58 UTC+0000
Release date
2025-09-24 01:52:54 UTC+0000
UTC Start
2025-09-24 01:52:54.906
UTC End
2025-09-24 01:53:33.306
MJD Start
60942.0784132648
MJD End
60942.07885770924
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006187
Ambient temperature (°C)
15.37
Seeing (arcsec)
0.58
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 60.6640 60.4760 127.1000 127.2000
A0-J2 93.0620 92.7490 94.0000 94.0000
A0-K0 107.2280 106.9980 69.6470 69.6030
G1-J2 53.7040 53.6390 55.9000 55.8000
G1-K0 90.4440 90.4380 35.2100 35.2060
J2-K0 44.4350 44.4470 9.9660 10.0560
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 60942.0784132648
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 60.664
HIERARCH ESO ISS PBL12 END 60.476
HIERARCH ESO ISS PBLA12 START 127.1
HIERARCH ESO ISS PBLA12 END 127.2
HIERARCH ESO ISS PBL13 START 93.062
HIERARCH ESO ISS PBL13 END 92.749
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 107.228
HIERARCH ESO ISS PBL14 END 106.998
HIERARCH ESO ISS PBLA14 START 69.647
HIERARCH ESO ISS PBLA14 END 69.603
HIERARCH ESO ISS PBL23 START 53.704
HIERARCH ESO ISS PBL23 END 53.639
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 55.8
HIERARCH ESO ISS PBL24 START 90.444
HIERARCH ESO ISS PBL24 END 90.438
HIERARCH ESO ISS PBLA24 START 35.21
HIERARCH ESO ISS PBLA24 END 35.206
HIERARCH ESO ISS PBL34 START 44.435
HIERARCH ESO ISS PBL34 END 44.447
HIERARCH ESO ISS PBLA34 START 9.966
HIERARCH ESO ISS PBLA34 END 10.056
HIERARCH ESO ISS AMBI TAU0 START 0.006187
HIERARCH ESO ISS AMBI TAU0 END 0.006187
HIERARCH ESO ISS AMBI TEMP 15.37
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.59