Exposure
ID
PIONI.2025-08-14T03:53:53.909_1
Header ID
PIONI.2025-08-14T03:53:53.909
Date updated
2025-08-14 04:00:58 UTC+0000
Release date
2025-08-14 03:53:53 UTC+0000
UTC Start
2025-08-14 03:53:53.909
UTC End
2025-08-14 03:54:19.509
MJD Start
60901.162429505
MJD End
60901.162725801296
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.009776
Ambient temperature (°C)
14.43
Seeing (arcsec)
0.95
Observation
ID
69989
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
51928
Name
HD 165634
RA
272.020268
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 102.5070 102.3580 254.4000 254.4000
K0-D0 79.2120 79.0870 267.9000 268.0000
K0-J3 56.1630 56.1610 352.7170 352.8050
B2-D0 31.5080 31.4900 38.4000 38.4000
B2-J3 123.8210 123.7190 47.7160 47.7450
D0-J3 92.8710 92.7860 50.8710 50.9000
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 60901.162429505
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.020268
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 B2
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 102.507
HIERARCH ESO ISS PBL12 END 102.358
HIERARCH ESO ISS PBLA12 START 254.4
HIERARCH ESO ISS PBLA12 END 254.4
HIERARCH ESO ISS PBL13 START 79.212
HIERARCH ESO ISS PBL13 END 79.087
HIERARCH ESO ISS PBLA13 START 267.9
HIERARCH ESO ISS PBLA13 END 268.0
HIERARCH ESO ISS PBL14 START 56.163
HIERARCH ESO ISS PBL14 END 56.161
HIERARCH ESO ISS PBLA14 START 352.717
HIERARCH ESO ISS PBLA14 END 352.805
HIERARCH ESO ISS PBL23 START 31.508
HIERARCH ESO ISS PBL23 END 31.49
HIERARCH ESO ISS PBLA23 START 38.4
HIERARCH ESO ISS PBLA23 END 38.4
HIERARCH ESO ISS PBL24 START 123.821
HIERARCH ESO ISS PBL24 END 123.719
HIERARCH ESO ISS PBLA24 START 47.716
HIERARCH ESO ISS PBLA24 END 47.745
HIERARCH ESO ISS PBL34 START 92.871
HIERARCH ESO ISS PBL34 END 92.786
HIERARCH ESO ISS PBLA34 START 50.871
HIERARCH ESO ISS PBLA34 END 50.9
HIERARCH ESO ISS AMBI TAU0 START 0.009776
HIERARCH ESO ISS AMBI TAU0 END 0.009776
HIERARCH ESO ISS AMBI TEMP 14.43
HIERARCH ESO ISS AMBI FWHM START 0.95
HIERARCH ESO ISS AMBI FWHM END 0.95