Exposure
ID
PIONI.2025-08-23T04:40:17.503_1
Header ID
PIONI.2025-08-23T04:40:17.503
Date updated
2025-08-23 04:45:36 UTC+0000
Release date
2025-08-23 04:40:17 UTC+0000
UTC Start
2025-08-23 04:40:17.502
UTC End
2025-08-23 04:40:43.102
MJD Start
60910.1946470151
MJD End
60910.1949433114
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002598
Ambient temperature (°C)
2.73
Seeing (arcsec)
0.92
Observation
ID
70075
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
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.1490 48.1510 184.0000 184.0000
A0-J2 86.8790 86.7160 132.3000 132.4000
A0-J6 141.7230 141.5820 40.9300 40.9360
B5-J2 68.4130 68.2100 98.7000 98.8000
B5-J6 182.5040 182.3990 31.7990 31.8170
J2-J6 167.9540 167.9550 9.7830 9.8560
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 60910.1946470151
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 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.149
HIERARCH ESO ISS PBL12 END 48.151
HIERARCH ESO ISS PBLA12 START 184.0
HIERARCH ESO ISS PBLA12 END 184.0
HIERARCH ESO ISS PBL13 START 86.879
HIERARCH ESO ISS PBL13 END 86.716
HIERARCH ESO ISS PBLA13 START 132.3
HIERARCH ESO ISS PBLA13 END 132.4
HIERARCH ESO ISS PBL14 START 141.723
HIERARCH ESO ISS PBL14 END 141.582
HIERARCH ESO ISS PBLA14 START 40.93
HIERARCH ESO ISS PBLA14 END 40.936
HIERARCH ESO ISS PBL23 START 68.413
HIERARCH ESO ISS PBL23 END 68.21
HIERARCH ESO ISS PBLA23 START 98.7
HIERARCH ESO ISS PBLA23 END 98.8
HIERARCH ESO ISS PBL24 START 182.504
HIERARCH ESO ISS PBL24 END 182.399
HIERARCH ESO ISS PBLA24 START 31.799
HIERARCH ESO ISS PBLA24 END 31.817
HIERARCH ESO ISS PBL34 START 167.954
HIERARCH ESO ISS PBL34 END 167.955
HIERARCH ESO ISS PBLA34 START 9.783
HIERARCH ESO ISS PBLA34 END 9.856
HIERARCH ESO ISS AMBI TAU0 START 0.002598
HIERARCH ESO ISS AMBI TAU0 END 0.002598
HIERARCH ESO ISS AMBI TEMP 2.73
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.91