Exposure
ID
PIONI.2025-08-22T01:33:52.629_1
Header ID
PIONI.2025-08-22T01:33:52.629
Date updated
2025-08-22 01:40:43 UTC+0000
Release date
2025-08-22 01:33:52 UTC+0000
UTC Start
2025-08-22 01:33:52.630
UTC End
2025-08-22 01:34:18.230
MJD Start
60909.0651924741
MJD End
60909.0654887704
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.46
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 67.2320 67.2090 55.2000 55.3000
A0-J2 127.4060 127.3560 98.3000 98.3000
A0-J3 130.3860 130.3440 50.7140 50.7700
G2-J2 90.7230 90.7060 128.6000 128.7000
G2-J3 63.5840 63.5660 45.9340 45.9900
J2-J3 103.9760 103.9770 345.9940 346.0640
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 60909.0651924741
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.232
HIERARCH ESO ISS PBL12 END 67.209
HIERARCH ESO ISS PBLA12 START 55.2
HIERARCH ESO ISS PBLA12 END 55.3
HIERARCH ESO ISS PBL13 START 127.406
HIERARCH ESO ISS PBL13 END 127.356
HIERARCH ESO ISS PBLA13 START 98.3
HIERARCH ESO ISS PBLA13 END 98.3
HIERARCH ESO ISS PBL14 START 130.386
HIERARCH ESO ISS PBL14 END 130.344
HIERARCH ESO ISS PBLA14 START 50.714
HIERARCH ESO ISS PBLA14 END 50.77
HIERARCH ESO ISS PBL23 START 90.723
HIERARCH ESO ISS PBL23 END 90.706
HIERARCH ESO ISS PBLA23 START 128.6
HIERARCH ESO ISS PBLA23 END 128.7
HIERARCH ESO ISS PBL24 START 63.584
HIERARCH ESO ISS PBL24 END 63.566
HIERARCH ESO ISS PBLA24 START 45.934
HIERARCH ESO ISS PBLA24 END 45.99
HIERARCH ESO ISS PBL34 START 103.976
HIERARCH ESO ISS PBL34 END 103.977
HIERARCH ESO ISS PBLA34 START 345.994
HIERARCH ESO ISS PBLA34 END 346.064
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.46
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76