Exposure
ID
PIONI.2025-08-15T02:27:46.813_1
Header ID
PIONI.2025-08-15T02:27:46.813
Date updated
2025-08-15 02:35:34 UTC+0000
Release date
2025-08-15 02:27:46 UTC+0000
UTC Start
2025-08-15 02:27:46.813
UTC End
2025-08-15 02:28:12.413
MJD Start
60902.1026251512
MJD End
60902.1029214475
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002927
Ambient temperature (°C)
11.1
Seeing (arcsec)
0.83
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 65.8610 65.8180 280.4000 280.4000
K0-D0 92.0680 92.0050 259.0000 259.1000
K0-J3 56.4990 56.4970 341.3360 341.4160
G2-D0 38.9970 38.9830 221.0000 221.1000
G2-J3 62.6000 62.5720 48.2560 48.3070
D0-J3 101.4040 101.3630 45.4750 45.5250
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 60902.1026251512
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 65.861
HIERARCH ESO ISS PBL12 END 65.818
HIERARCH ESO ISS PBLA12 START 280.4
HIERARCH ESO ISS PBLA12 END 280.4
HIERARCH ESO ISS PBL13 START 92.068
HIERARCH ESO ISS PBL13 END 92.005
HIERARCH ESO ISS PBLA13 START 259.0
HIERARCH ESO ISS PBLA13 END 259.1
HIERARCH ESO ISS PBL14 START 56.499
HIERARCH ESO ISS PBL14 END 56.497
HIERARCH ESO ISS PBLA14 START 341.336
HIERARCH ESO ISS PBLA14 END 341.416
HIERARCH ESO ISS PBL23 START 38.997
HIERARCH ESO ISS PBL23 END 38.983
HIERARCH ESO ISS PBLA23 START 221.0
HIERARCH ESO ISS PBLA23 END 221.1
HIERARCH ESO ISS PBL24 START 62.6
HIERARCH ESO ISS PBL24 END 62.572
HIERARCH ESO ISS PBLA24 START 48.256
HIERARCH ESO ISS PBLA24 END 48.307
HIERARCH ESO ISS PBL34 START 101.404
HIERARCH ESO ISS PBL34 END 101.363
HIERARCH ESO ISS PBLA34 START 45.475
HIERARCH ESO ISS PBLA34 END 45.525
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 0.83
HIERARCH ESO ISS AMBI FWHM END 0.83