Exposure
ID
PIONI.2025-10-31T05:06:19.747_1
Header ID
PIONI.2025-10-31T05:06:19.747
Date updated
2025-10-31 05:10:50 UTC+0000
Release date
2025-10-31 05:06:19 UTC+0000
UTC Start
2025-10-31 05:06:19.747
UTC End
2025-10-31 05:06:58.147
MJD Start
60979.2127285521
MJD End
60979.21317299654
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0034295
Ambient temperature (°C)
13.3
Seeing (arcsec)
0.545
Observation
ID
71072
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
52752
Name
HD 22836
RA
54.901781
DEC
-17.3652
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 90.1870 90.2100 113.1000 113.2000
A0-J2 127.8250 127.8890 90.1000 90.1000
A0-K0 125.7700 125.8440 68.0660 68.1340
G1-J2 57.0970 57.1280 51.8000 51.9000
G1-K0 89.0450 89.0660 22.2580 22.3450
J2-K0 48.4270 48.4230 346.6760 346.7490
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 60979.2127285521
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 22836
RA 54.901781
DEC -17.3652
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 90.187
HIERARCH ESO ISS PBL12 END 90.21
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.2
HIERARCH ESO ISS PBL13 START 127.825
HIERARCH ESO ISS PBL13 END 127.889
HIERARCH ESO ISS PBLA13 START 90.1
HIERARCH ESO ISS PBLA13 END 90.1
HIERARCH ESO ISS PBL14 START 125.77
HIERARCH ESO ISS PBL14 END 125.844
HIERARCH ESO ISS PBLA14 START 68.066
HIERARCH ESO ISS PBLA14 END 68.134
HIERARCH ESO ISS PBL23 START 57.097
HIERARCH ESO ISS PBL23 END 57.128
HIERARCH ESO ISS PBLA23 START 51.8
HIERARCH ESO ISS PBLA23 END 51.9
HIERARCH ESO ISS PBL24 START 89.045
HIERARCH ESO ISS PBL24 END 89.066
HIERARCH ESO ISS PBLA24 START 22.258
HIERARCH ESO ISS PBLA24 END 22.345
HIERARCH ESO ISS PBL34 START 48.427
HIERARCH ESO ISS PBL34 END 48.423
HIERARCH ESO ISS PBLA34 START 346.676
HIERARCH ESO ISS PBLA34 END 346.749
HIERARCH ESO ISS AMBI TAU0 START 0.003328
HIERARCH ESO ISS AMBI TAU0 END 0.003531
HIERARCH ESO ISS AMBI TEMP 13.3
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.56