Exposure
ID
PIONI.2025-08-23T07:30:11.957_1
Header ID
PIONI.2025-08-23T07:30:11.957
Date updated
2025-08-23 07:35:52 UTC+0000
Release date
2025-08-23 07:30:11 UTC+0000
UTC Start
2025-08-23 07:30:11.957
UTC End
2025-08-23 07:30:50.357
MJD Start
60910.3126383857
MJD End
60910.313082830144
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002585
Ambient temperature (°C)
2.9
Seeing (arcsec)
1.16
Observation
ID
70081
Category
calibrator
Program ID
115.28F2.003
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
51994
Name
HD220171
RA
350.433186
DEC
3.06035
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 40.0340 39.9990 159.1000 159.2000
A0-J2 117.6030 117.4150 91.4000 91.4000
A0-J6 165.6750 165.7470 34.3550 34.3800
B5-J2 108.9450 108.8590 71.5000 71.5000
B5-J6 191.3520 191.4450 24.4580 24.5080
J2-J6 141.6380 141.5840 350.2090 350.3240
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60910.3126383857
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD220171
RA 350.433186
DEC 3.06035
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 40.034
HIERARCH ESO ISS PBL12 END 39.999
HIERARCH ESO ISS PBLA12 START 159.1
HIERARCH ESO ISS PBLA12 END 159.2
HIERARCH ESO ISS PBL13 START 117.603
HIERARCH ESO ISS PBL13 END 117.415
HIERARCH ESO ISS PBLA13 START 91.4
HIERARCH ESO ISS PBLA13 END 91.4
HIERARCH ESO ISS PBL14 START 165.675
HIERARCH ESO ISS PBL14 END 165.747
HIERARCH ESO ISS PBLA14 START 34.355
HIERARCH ESO ISS PBLA14 END 34.38
HIERARCH ESO ISS PBL23 START 108.945
HIERARCH ESO ISS PBL23 END 108.859
HIERARCH ESO ISS PBLA23 START 71.5
HIERARCH ESO ISS PBLA23 END 71.5
HIERARCH ESO ISS PBL24 START 191.352
HIERARCH ESO ISS PBL24 END 191.445
HIERARCH ESO ISS PBLA24 START 24.458
HIERARCH ESO ISS PBLA24 END 24.508
HIERARCH ESO ISS PBL34 START 141.638
HIERARCH ESO ISS PBL34 END 141.584
HIERARCH ESO ISS PBLA34 START 350.209
HIERARCH ESO ISS PBLA34 END 350.324
HIERARCH ESO ISS AMBI TAU0 START 0.002585
HIERARCH ESO ISS AMBI TAU0 END 0.002585
HIERARCH ESO ISS AMBI TEMP 2.9
HIERARCH ESO ISS AMBI FWHM START 1.16
HIERARCH ESO ISS AMBI FWHM END 1.16