Exposure
ID
PIONI.2025-08-23T07:31:52.736_1
Header ID
PIONI.2025-08-23T07:31:52.736
Date updated
2025-08-23 07:40:49 UTC+0000
Release date
2025-08-23 07:31:52 UTC+0000
UTC Start
2025-08-23 07:31:52.737
UTC End
2025-08-23 07:32:31.137
MJD Start
60910.3138048248
MJD End
60910.31424926924
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002528
Ambient temperature (°C)
2.85
Seeing (arcsec)
1.2850000000000001
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 39.9620 39.9270 159.4000 159.5000
A0-J2 117.2100 117.0150 91.3000 91.3000
A0-J6 165.8250 165.8970 34.4070 34.4320
B5-J2 108.7640 108.6730 71.4000 71.4000
B5-J6 191.5460 191.6400 24.5610 24.6120
J2-J6 141.5270 141.4740 350.4490 350.5660
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 60910.3138048248
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 39.962
HIERARCH ESO ISS PBL12 END 39.927
HIERARCH ESO ISS PBLA12 START 159.4
HIERARCH ESO ISS PBLA12 END 159.5
HIERARCH ESO ISS PBL13 START 117.21
HIERARCH ESO ISS PBL13 END 117.015
HIERARCH ESO ISS PBLA13 START 91.3
HIERARCH ESO ISS PBLA13 END 91.3
HIERARCH ESO ISS PBL14 START 165.825
HIERARCH ESO ISS PBL14 END 165.897
HIERARCH ESO ISS PBLA14 START 34.407
HIERARCH ESO ISS PBLA14 END 34.432
HIERARCH ESO ISS PBL23 START 108.764
HIERARCH ESO ISS PBL23 END 108.673
HIERARCH ESO ISS PBLA23 START 71.4
HIERARCH ESO ISS PBLA23 END 71.4
HIERARCH ESO ISS PBL24 START 191.546
HIERARCH ESO ISS PBL24 END 191.64
HIERARCH ESO ISS PBLA24 START 24.561
HIERARCH ESO ISS PBLA24 END 24.612
HIERARCH ESO ISS PBL34 START 141.527
HIERARCH ESO ISS PBL34 END 141.474
HIERARCH ESO ISS PBLA34 START 350.449
HIERARCH ESO ISS PBLA34 END 350.566
HIERARCH ESO ISS AMBI TAU0 START 0.002585
HIERARCH ESO ISS AMBI TAU0 END 0.002471
HIERARCH ESO ISS AMBI TEMP 2.85
HIERARCH ESO ISS AMBI FWHM START 1.35
HIERARCH ESO ISS AMBI FWHM END 1.22