Exposure
ID
PIONI.2025-08-21T23:58:34.673_1
Header ID
PIONI.2025-08-21T23:58:34.673
Date updated
2025-08-22 00:05:57 UTC+0000
Release date
2025-08-21 23:58:34 UTC+0000
UTC Start
2025-08-21 23:58:34.673
UTC End
2025-08-21 23:59:13.073
MJD Start
60908.9990124204
MJD End
60908.99945686484
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.8
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 67.9950 68.0100 44.3000 44.4000
A0-J2 126.7350 126.8130 86.8000 86.9000
A0-J3 131.9320 131.9550 39.8710 39.9770
G2-J2 89.3240 89.3750 117.7000 117.8000
G2-J3 64.3490 64.3570 35.2230 35.3280
J2-J3 103.0480 103.0650 335.9760 336.0480
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 60908.9990124204
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 67.995
HIERARCH ESO ISS PBL12 END 68.01
HIERARCH ESO ISS PBLA12 START 44.3
HIERARCH ESO ISS PBLA12 END 44.4
HIERARCH ESO ISS PBL13 START 126.735
HIERARCH ESO ISS PBL13 END 126.813
HIERARCH ESO ISS PBLA13 START 86.8
HIERARCH ESO ISS PBLA13 END 86.9
HIERARCH ESO ISS PBL14 START 131.932
HIERARCH ESO ISS PBL14 END 131.955
HIERARCH ESO ISS PBLA14 START 39.871
HIERARCH ESO ISS PBLA14 END 39.977
HIERARCH ESO ISS PBL23 START 89.324
HIERARCH ESO ISS PBL23 END 89.375
HIERARCH ESO ISS PBLA23 START 117.7
HIERARCH ESO ISS PBLA23 END 117.8
HIERARCH ESO ISS PBL24 START 64.349
HIERARCH ESO ISS PBL24 END 64.357
HIERARCH ESO ISS PBLA24 START 35.223
HIERARCH ESO ISS PBLA24 END 35.328
HIERARCH ESO ISS PBL34 START 103.048
HIERARCH ESO ISS PBL34 END 103.065
HIERARCH ESO ISS PBLA34 START 335.976
HIERARCH ESO ISS PBLA34 END 336.048
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.8
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76