Exposure
ID
PIONI.2025-08-15T04:08:36.889_1
Header ID
PIONI.2025-08-15T04:08:36.889
Date updated
2025-08-15 04:15:45 UTC+0000
Release date
2025-08-15 04:08:36 UTC+0000
UTC Start
2025-08-15 04:08:36.889
UTC End
2025-08-15 04:09:02.489
MJD Start
60902.1726491805
MJD End
60902.1729454768
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.66
Seeing (arcsec)
0.93
Observation
ID
70013
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
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 54.8640 54.7820 296.0000 296.1000
K0-D0 75.1220 74.9880 270.1000 270.1000
K0-J3 56.1110 56.1100 355.4510 355.5370
G2-D0 35.1980 35.1660 227.2000 227.2000
G2-J3 55.0510 54.9890 54.5950 54.6190
D0-J3 90.0680 89.9750 51.6930 51.7160
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 60902.1726491805
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 54.864
HIERARCH ESO ISS PBL12 END 54.782
HIERARCH ESO ISS PBLA12 START 296.0
HIERARCH ESO ISS PBLA12 END 296.1
HIERARCH ESO ISS PBL13 START 75.122
HIERARCH ESO ISS PBL13 END 74.988
HIERARCH ESO ISS PBLA13 START 270.1
HIERARCH ESO ISS PBLA13 END 270.1
HIERARCH ESO ISS PBL14 START 56.111
HIERARCH ESO ISS PBL14 END 56.11
HIERARCH ESO ISS PBLA14 START 355.451
HIERARCH ESO ISS PBLA14 END 355.537
HIERARCH ESO ISS PBL23 START 35.198
HIERARCH ESO ISS PBL23 END 35.166
HIERARCH ESO ISS PBLA23 START 227.2
HIERARCH ESO ISS PBLA23 END 227.2
HIERARCH ESO ISS PBL24 START 55.051
HIERARCH ESO ISS PBL24 END 54.989
HIERARCH ESO ISS PBLA24 START 54.595
HIERARCH ESO ISS PBLA24 END 54.619
HIERARCH ESO ISS PBL34 START 90.068
HIERARCH ESO ISS PBL34 END 89.975
HIERARCH ESO ISS PBLA34 START 51.693
HIERARCH ESO ISS PBLA34 END 51.716
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.66
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.93