Exposure
ID
PIONI.2025-08-23T04:38:24.211_1
Header ID
PIONI.2025-08-23T04:38:24.211
Date updated
2025-08-23 04:45:36 UTC+0000
Release date
2025-08-23 04:38:24 UTC+0000
UTC Start
2025-08-23 04:38:24.211
UTC End
2025-08-23 04:38:49.811
MJD Start
60910.1933357706
MJD End
60910.1936320669
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0027140000000000003
Ambient temperature (°C)
2.73
Seeing (arcsec)
0.9
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 48.1460 48.1470 183.7000 183.8000
A0-J2 87.3930 87.2290 131.7000 131.9000
A0-J6 142.1640 142.0240 40.9100 40.9170
B5-J2 69.0460 68.8440 98.4000 98.5000
B5-J6 182.8320 182.7280 31.7400 31.7590
J2-J6 167.9510 167.9520 9.5520 9.6250
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 60910.1933357706
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 48.146
HIERARCH ESO ISS PBL12 END 48.147
HIERARCH ESO ISS PBLA12 START 183.7
HIERARCH ESO ISS PBLA12 END 183.8
HIERARCH ESO ISS PBL13 START 87.393
HIERARCH ESO ISS PBL13 END 87.229
HIERARCH ESO ISS PBLA13 START 131.7
HIERARCH ESO ISS PBLA13 END 131.9
HIERARCH ESO ISS PBL14 START 142.164
HIERARCH ESO ISS PBL14 END 142.024
HIERARCH ESO ISS PBLA14 START 40.91
HIERARCH ESO ISS PBLA14 END 40.917
HIERARCH ESO ISS PBL23 START 69.046
HIERARCH ESO ISS PBL23 END 68.844
HIERARCH ESO ISS PBLA23 START 98.4
HIERARCH ESO ISS PBLA23 END 98.5
HIERARCH ESO ISS PBL24 START 182.832
HIERARCH ESO ISS PBL24 END 182.728
HIERARCH ESO ISS PBLA24 START 31.74
HIERARCH ESO ISS PBLA24 END 31.759
HIERARCH ESO ISS PBL34 START 167.951
HIERARCH ESO ISS PBL34 END 167.952
HIERARCH ESO ISS PBLA34 START 9.552
HIERARCH ESO ISS PBLA34 END 9.625
HIERARCH ESO ISS AMBI TAU0 START 0.00283
HIERARCH ESO ISS AMBI TAU0 END 0.002598
HIERARCH ESO ISS AMBI TEMP 2.73
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.93