Exposure
ID
PIONI.2025-08-15T02:25:53.755_1
Header ID
PIONI.2025-08-15T02:25:53.755
Date updated
2025-08-15 02:30:50 UTC+0000
Release date
2025-08-15 02:25:53 UTC+0000
UTC Start
2025-08-15 02:25:53.755
UTC End
2025-08-15 02:26:19.355
MJD Start
60902.101316608
MJD End
60902.1016129043
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002927
Ambient temperature (°C)
11.1
Seeing (arcsec)
0.91
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 65.9900 65.9490 280.1000 280.2000
K0-D0 92.2590 92.1990 258.8000 258.9000
K0-J3 56.5050 56.5030 341.0930 341.1700
G2-D0 39.0380 39.0250 220.9000 220.9000
G2-J3 62.6830 62.6570 48.0990 48.1490
D0-J3 101.5290 101.4900 45.3190 45.3690
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 60902.101316608
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 65.99
HIERARCH ESO ISS PBL12 END 65.949
HIERARCH ESO ISS PBLA12 START 280.1
HIERARCH ESO ISS PBLA12 END 280.2
HIERARCH ESO ISS PBL13 START 92.259
HIERARCH ESO ISS PBL13 END 92.199
HIERARCH ESO ISS PBLA13 START 258.8
HIERARCH ESO ISS PBLA13 END 258.9
HIERARCH ESO ISS PBL14 START 56.505
HIERARCH ESO ISS PBL14 END 56.503
HIERARCH ESO ISS PBLA14 START 341.093
HIERARCH ESO ISS PBLA14 END 341.17
HIERARCH ESO ISS PBL23 START 39.038
HIERARCH ESO ISS PBL23 END 39.025
HIERARCH ESO ISS PBLA23 START 220.9
HIERARCH ESO ISS PBLA23 END 220.9
HIERARCH ESO ISS PBL24 START 62.683
HIERARCH ESO ISS PBL24 END 62.657
HIERARCH ESO ISS PBLA24 START 48.099
HIERARCH ESO ISS PBLA24 END 48.149
HIERARCH ESO ISS PBL34 START 101.529
HIERARCH ESO ISS PBL34 END 101.49
HIERARCH ESO ISS PBLA34 START 45.319
HIERARCH ESO ISS PBLA34 END 45.369
HIERARCH ESO ISS AMBI TAU0 START 0.002927
HIERARCH ESO ISS AMBI TAU0 END 0.002927
HIERARCH ESO ISS AMBI TEMP 11.1
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.91