Exposure
ID
PIONI.2025-08-22T01:47:38.461_1
Header ID
PIONI.2025-08-22T01:47:38.461
Date updated
2025-08-22 01:55:55 UTC+0000
Release date
2025-08-22 01:47:38 UTC+0000
UTC Start
2025-08-22 01:47:38.462
UTC End
2025-08-22 01:48:04.062
MJD Start
60909.0747507121
MJD End
60909.075047008395
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.61
Seeing (arcsec)
1.76
Observation
ID
70063
Category
calibrator
Program ID
115.27VC.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: IMAGING THE RED SUPERGIANT VX SAGITARII WITH VLTI AND ALMA
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / KRTICKA / PALADINI / HÖFNER / FREYTAG / HUMPHREYS
Target
ID
51945
Name
HD 168592
RA
275.577084
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 65.7210 65.6890 57.1000 57.2000
A0-J2 127.9980 127.9610 99.7000 99.8000
A0-J3 127.0960 127.0360 52.5280 52.6000
G2-J2 91.2070 91.2080 128.9000 129.0000
G2-J3 61.8160 61.7880 47.6150 47.6850
J2-J3 102.1740 102.1840 345.6750 345.7480
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VC.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60909.0747507121
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 168592
RA 275.577084
DEC -38.65706
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 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 65.721
HIERARCH ESO ISS PBL12 END 65.689
HIERARCH ESO ISS PBLA12 START 57.1
HIERARCH ESO ISS PBLA12 END 57.2
HIERARCH ESO ISS PBL13 START 127.998
HIERARCH ESO ISS PBL13 END 127.961
HIERARCH ESO ISS PBLA13 START 99.7
HIERARCH ESO ISS PBLA13 END 99.8
HIERARCH ESO ISS PBL14 START 127.096
HIERARCH ESO ISS PBL14 END 127.036
HIERARCH ESO ISS PBLA14 START 52.528
HIERARCH ESO ISS PBLA14 END 52.6
HIERARCH ESO ISS PBL23 START 91.207
HIERARCH ESO ISS PBL23 END 91.208
HIERARCH ESO ISS PBLA23 START 128.9
HIERARCH ESO ISS PBLA23 END 129.0
HIERARCH ESO ISS PBL24 START 61.816
HIERARCH ESO ISS PBL24 END 61.788
HIERARCH ESO ISS PBLA24 START 47.615
HIERARCH ESO ISS PBLA24 END 47.685
HIERARCH ESO ISS PBL34 START 102.174
HIERARCH ESO ISS PBL34 END 102.184
HIERARCH ESO ISS PBLA34 START 345.675
HIERARCH ESO ISS PBLA34 END 345.748
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.61
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76