Exposure
ID
PIONI.2025-08-23T07:31:02.240_1
Header ID
PIONI.2025-08-23T07:31:02.240
Date updated
2025-08-23 07:35:52 UTC+0000
Release date
2025-08-23 07:31:02 UTC+0000
UTC Start
2025-08-23 07:31:02.240
UTC End
2025-08-23 07:31:40.640
MJD Start
60910.3132203715
MJD End
60910.31366481594
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002585
Ambient temperature (°C)
2.86
Seeing (arcsec)
1.255
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 39.9980 39.9630 159.2000 159.4000
A0-J2 117.4070 117.2140 91.4000 91.3000
A0-J6 165.7500 165.8230 34.3810 34.4070
B5-J2 108.8550 108.7660 71.5000 71.4000
B5-J6 191.4490 191.5440 24.5100 24.5600
J2-J6 141.5820 141.5280 350.3290 350.4460
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 60910.3132203715
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 39.998
HIERARCH ESO ISS PBL12 END 39.963
HIERARCH ESO ISS PBLA12 START 159.2
HIERARCH ESO ISS PBLA12 END 159.4
HIERARCH ESO ISS PBL13 START 117.407
HIERARCH ESO ISS PBL13 END 117.214
HIERARCH ESO ISS PBLA13 START 91.4
HIERARCH ESO ISS PBLA13 END 91.3
HIERARCH ESO ISS PBL14 START 165.75
HIERARCH ESO ISS PBL14 END 165.823
HIERARCH ESO ISS PBLA14 START 34.381
HIERARCH ESO ISS PBLA14 END 34.407
HIERARCH ESO ISS PBL23 START 108.855
HIERARCH ESO ISS PBL23 END 108.766
HIERARCH ESO ISS PBLA23 START 71.5
HIERARCH ESO ISS PBLA23 END 71.4
HIERARCH ESO ISS PBL24 START 191.449
HIERARCH ESO ISS PBL24 END 191.544
HIERARCH ESO ISS PBLA24 START 24.51
HIERARCH ESO ISS PBLA24 END 24.56
HIERARCH ESO ISS PBL34 START 141.582
HIERARCH ESO ISS PBL34 END 141.528
HIERARCH ESO ISS PBLA34 START 350.329
HIERARCH ESO ISS PBLA34 END 350.446
HIERARCH ESO ISS AMBI TAU0 START 0.002585
HIERARCH ESO ISS AMBI TAU0 END 0.002585
HIERARCH ESO ISS AMBI TEMP 2.86
HIERARCH ESO ISS AMBI FWHM START 1.16
HIERARCH ESO ISS AMBI FWHM END 1.35