Exposure
ID
PIONI.2025-09-23T02:02:12.734_1
Header ID
PIONI.2025-09-23T02:02:12.734
Date updated
2025-09-23 02:10:36 UTC+0000
Release date
2025-09-23 02:02:12 UTC+0000
UTC Start
2025-09-23 02:02:12.734
UTC End
2025-09-23 02:02:51.134
MJD Start
60941.0848696074
MJD End
60941.085314051845
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.007034
Ambient temperature (°C)
14.39
Seeing (arcsec)
0.56
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 59.4080 59.2150 128.0000 128.2000
A0-J2 90.9430 90.6150 94.1000 94.1000
A0-K0 105.6700 105.4280 69.3450 69.2950
G1-J2 53.2590 53.1890 55.6000 55.5000
G1-K0 90.3990 90.3910 35.1800 35.1720
J2-K0 44.5180 44.5310 10.5620 10.6500
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 60941.0848696074
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 59.408
HIERARCH ESO ISS PBL12 END 59.215
HIERARCH ESO ISS PBLA12 START 128.0
HIERARCH ESO ISS PBLA12 END 128.2
HIERARCH ESO ISS PBL13 START 90.943
HIERARCH ESO ISS PBL13 END 90.615
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 105.67
HIERARCH ESO ISS PBL14 END 105.428
HIERARCH ESO ISS PBLA14 START 69.345
HIERARCH ESO ISS PBLA14 END 69.295
HIERARCH ESO ISS PBL23 START 53.259
HIERARCH ESO ISS PBL23 END 53.189
HIERARCH ESO ISS PBLA23 START 55.6
HIERARCH ESO ISS PBLA23 END 55.5
HIERARCH ESO ISS PBL24 START 90.399
HIERARCH ESO ISS PBL24 END 90.391
HIERARCH ESO ISS PBLA24 START 35.18
HIERARCH ESO ISS PBLA24 END 35.172
HIERARCH ESO ISS PBL34 START 44.518
HIERARCH ESO ISS PBL34 END 44.531
HIERARCH ESO ISS PBLA34 START 10.562
HIERARCH ESO ISS PBLA34 END 10.65
HIERARCH ESO ISS AMBI TAU0 START 0.007034
HIERARCH ESO ISS AMBI TAU0 END 0.007034
HIERARCH ESO ISS AMBI TEMP 14.39
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.54