Exposure
ID
PIONI.2025-08-21T23:56:03.027_1
Header ID
PIONI.2025-08-21T23:56:03.027
Date updated
2025-08-22 00:00:49 UTC+0000
Release date
2025-08-21 23:56:03 UTC+0000
UTC Start
2025-08-21 23:56:03.027
UTC End
2025-08-21 23:56:41.427
MJD Start
60908.9972572578
MJD End
60908.99770170224
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.81
Seeing (arcsec)
1.76
Observation
ID
70056
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
51944
Name
HD 165634
RA
272.020899
DEC
-28.45727
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 67.9480 67.9630 43.9000 44.0000
A0-J2 126.4840 126.5670 86.5000 86.6000
A0-J3 131.8600 131.8840 39.5290 39.6430
G2-J2 89.1620 89.2150 117.5000 117.6000
G2-J3 64.3230 64.3310 34.8860 34.9980
J2-J3 102.9920 103.0100 335.7410 335.8190
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 60908.9972572578
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.020899
DEC -28.45727
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 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.948
HIERARCH ESO ISS PBL12 END 67.963
HIERARCH ESO ISS PBLA12 START 43.9
HIERARCH ESO ISS PBLA12 END 44.0
HIERARCH ESO ISS PBL13 START 126.484
HIERARCH ESO ISS PBL13 END 126.567
HIERARCH ESO ISS PBLA13 START 86.5
HIERARCH ESO ISS PBLA13 END 86.6
HIERARCH ESO ISS PBL14 START 131.86
HIERARCH ESO ISS PBL14 END 131.884
HIERARCH ESO ISS PBLA14 START 39.529
HIERARCH ESO ISS PBLA14 END 39.643
HIERARCH ESO ISS PBL23 START 89.162
HIERARCH ESO ISS PBL23 END 89.215
HIERARCH ESO ISS PBLA23 START 117.5
HIERARCH ESO ISS PBLA23 END 117.6
HIERARCH ESO ISS PBL24 START 64.323
HIERARCH ESO ISS PBL24 END 64.331
HIERARCH ESO ISS PBLA24 START 34.886
HIERARCH ESO ISS PBLA24 END 34.998
HIERARCH ESO ISS PBL34 START 102.992
HIERARCH ESO ISS PBL34 END 103.01
HIERARCH ESO ISS PBLA34 START 335.741
HIERARCH ESO ISS PBLA34 END 335.819
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.81
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76