Exposure
ID
PIONI.2025-10-31T05:32:14.291_1
Header ID
PIONI.2025-10-31T05:32:14.291
Date updated
2025-10-31 05:41:30 UTC+0000
Release date
2025-10-31 05:32:14 UTC+0000
UTC Start
2025-10-31 05:32:14.291
UTC End
2025-10-31 05:32:52.691
MJD Start
60979.2307209633
MJD End
60979.23116540774
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0024165000000000002
Ambient temperature (°C)
13.05
Seeing (arcsec)
0.62
Observation
ID
71074
Category
calibrator
Program ID
116.290A.001
Program Title
CONSTRAINING ASTEROSEISMIC MODELS OF MASSIVE OB STARS USING HIGH-PRECISION INTERFEROMETRY
Program Type
Normal
PI / COI
VRANCKEN / DESHMUKH / SANA / TKACHENKO / AERTS / KLIAPETS
Target
ID
52754
Name
HD 27040
RA
63.944038
DEC
-18.64032
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 89.7220 89.7590 112.3000 112.4000
A0-J2 126.9130 126.9950 89.1000 89.1000
A0-K0 124.9950 125.0800 66.8450 66.9310
G1-J2 56.8740 56.9060 50.5000 50.6000
G1-K0 89.1310 89.1500 20.9860 21.0870
J2-K0 48.5510 48.5480 345.7260 345.8080
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.290A.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60979.2307209633
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 27040
RA 63.944038
DEC -18.64032
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 89.722
HIERARCH ESO ISS PBL12 END 89.759
HIERARCH ESO ISS PBLA12 START 112.3
HIERARCH ESO ISS PBLA12 END 112.4
HIERARCH ESO ISS PBL13 START 126.913
HIERARCH ESO ISS PBL13 END 126.995
HIERARCH ESO ISS PBLA13 START 89.1
HIERARCH ESO ISS PBLA13 END 89.1
HIERARCH ESO ISS PBL14 START 124.995
HIERARCH ESO ISS PBL14 END 125.08
HIERARCH ESO ISS PBLA14 START 66.845
HIERARCH ESO ISS PBLA14 END 66.931
HIERARCH ESO ISS PBL23 START 56.874
HIERARCH ESO ISS PBL23 END 56.906
HIERARCH ESO ISS PBLA23 START 50.5
HIERARCH ESO ISS PBLA23 END 50.6
HIERARCH ESO ISS PBL24 START 89.131
HIERARCH ESO ISS PBL24 END 89.15
HIERARCH ESO ISS PBLA24 START 20.986
HIERARCH ESO ISS PBLA24 END 21.087
HIERARCH ESO ISS PBL34 START 48.551
HIERARCH ESO ISS PBL34 END 48.548
HIERARCH ESO ISS PBLA34 START 345.726
HIERARCH ESO ISS PBLA34 END 345.808
HIERARCH ESO ISS AMBI TAU0 START 0.002275
HIERARCH ESO ISS AMBI TAU0 END 0.002558
HIERARCH ESO ISS AMBI TEMP 13.05
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.59