Exposure
ID
PIONI.2025-07-23T04:48:35.451_1
Header ID
PIONI.2025-07-23T04:48:35.451
Date updated
2025-07-23 04:55:47 UTC+0000
Release date
2025-07-23 04:48:35 UTC+0000
UTC Start
2025-07-23 04:48:35.451
UTC End
2025-07-23 04:49:13.851
MJD Start
60879.2004103134
MJD End
60879.200854757844
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.003044
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.54
Observation
ID
67037
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
49845
Name
HD170817
RA
277.856058
DEC
-0.28448
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 76.1660 76.0120 118.5000 118.5000
A0-J2 116.2830 116.0810 93.0000 93.0000
A0-K0 123.0820 122.9620 72.1830 72.1690
G1-J2 57.7440 57.7210 58.4000 58.4000
G1-K0 89.4220 89.4500 34.1720 34.2010
J2-K0 43.7280 43.7300 1.3750 1.4780
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 60879.2004103134
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856058
DEC -0.28448
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 76.166
HIERARCH ESO ISS PBL12 END 76.012
HIERARCH ESO ISS PBLA12 START 118.5
HIERARCH ESO ISS PBLA12 END 118.5
HIERARCH ESO ISS PBL13 START 116.283
HIERARCH ESO ISS PBL13 END 116.081
HIERARCH ESO ISS PBLA13 START 93.0
HIERARCH ESO ISS PBLA13 END 93.0
HIERARCH ESO ISS PBL14 START 123.082
HIERARCH ESO ISS PBL14 END 122.962
HIERARCH ESO ISS PBLA14 START 72.183
HIERARCH ESO ISS PBLA14 END 72.169
HIERARCH ESO ISS PBL23 START 57.744
HIERARCH ESO ISS PBL23 END 57.721
HIERARCH ESO ISS PBLA23 START 58.4
HIERARCH ESO ISS PBLA23 END 58.4
HIERARCH ESO ISS PBL24 START 89.422
HIERARCH ESO ISS PBL24 END 89.45
HIERARCH ESO ISS PBLA24 START 34.172
HIERARCH ESO ISS PBLA24 END 34.201
HIERARCH ESO ISS PBL34 START 43.728
HIERARCH ESO ISS PBL34 END 43.73
HIERARCH ESO ISS PBLA34 START 1.375
HIERARCH ESO ISS PBLA34 END 1.478
HIERARCH ESO ISS AMBI TAU0 START 0.003044
HIERARCH ESO ISS AMBI TAU0 END 0.003044
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.54