Exposure
ID
PIONI.2025-07-21T06:07:35.910_1
Header ID
PIONI.2025-07-21T06:07:35.910
Date updated
2025-07-21 06:15:34 UTC+0000
Release date
2025-07-21 06:07:35 UTC+0000
UTC Start
2025-07-21 06:07:35.911
UTC End
2025-07-21 06:08:14.311
MJD Start
60877.2552767424
MJD End
60877.25572118684
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0046905
Ambient temperature (°C)
15.0
Seeing (arcsec)
0.56
Observation
ID
68893
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51256
Name
HD170785
RA
277.803513
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 60.8800 60.6890 126.9000 127.1000
A0-J2 93.4200 93.1020 94.0000 94.0000
A0-K0 107.4890 107.2560 69.6970 69.6540
G1-J2 53.7780 53.7120 55.9000 55.9000
G1-K0 90.4500 90.4440 35.2120 35.2100
J2-K0 44.4220 44.4340 9.8620 9.9550
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 60877.2552767424
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803513
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 60.88
HIERARCH ESO ISS PBL12 END 60.689
HIERARCH ESO ISS PBLA12 START 126.9
HIERARCH ESO ISS PBLA12 END 127.1
HIERARCH ESO ISS PBL13 START 93.42
HIERARCH ESO ISS PBL13 END 93.102
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 107.489
HIERARCH ESO ISS PBL14 END 107.256
HIERARCH ESO ISS PBLA14 START 69.697
HIERARCH ESO ISS PBLA14 END 69.654
HIERARCH ESO ISS PBL23 START 53.778
HIERARCH ESO ISS PBL23 END 53.712
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 55.9
HIERARCH ESO ISS PBL24 START 90.45
HIERARCH ESO ISS PBL24 END 90.444
HIERARCH ESO ISS PBLA24 START 35.212
HIERARCH ESO ISS PBLA24 END 35.21
HIERARCH ESO ISS PBL34 START 44.422
HIERARCH ESO ISS PBL34 END 44.434
HIERARCH ESO ISS PBLA34 START 9.862
HIERARCH ESO ISS PBLA34 END 9.955
HIERARCH ESO ISS AMBI TAU0 START 0.004615
HIERARCH ESO ISS AMBI TAU0 END 0.004766
HIERARCH ESO ISS AMBI TEMP 15.0
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.57