Exposure
ID
PIONI.2025-08-14T03:55:09.067_1
Header ID
PIONI.2025-08-14T03:55:09.067
Date updated
2025-08-14 04:00:58 UTC+0000
Release date
2025-08-14 03:55:09 UTC+0000
UTC Start
2025-08-14 03:55:09.067
UTC End
2025-08-14 03:55:34.667
MJD Start
60901.1632993883
MJD End
60901.1635956846
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.009416500000000001
Ambient temperature (°C)
14.43
Seeing (arcsec)
0.81
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 102.1970 102.0470 254.5000 254.5000
K0-D0 78.9510 78.8250 268.0000 268.1000
K0-J3 56.1590 56.1570 352.8990 352.9870
B2-D0 31.4700 31.4520 38.4000 38.5000
B2-J3 123.6070 123.5030 47.7760 47.8040
D0-J3 92.6940 92.6080 50.9310 50.9600
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 60901.1632993883
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 102.197
HIERARCH ESO ISS PBL12 END 102.047
HIERARCH ESO ISS PBLA12 START 254.5
HIERARCH ESO ISS PBLA12 END 254.5
HIERARCH ESO ISS PBL13 START 78.951
HIERARCH ESO ISS PBL13 END 78.825
HIERARCH ESO ISS PBLA13 START 268.0
HIERARCH ESO ISS PBLA13 END 268.1
HIERARCH ESO ISS PBL14 START 56.159
HIERARCH ESO ISS PBL14 END 56.157
HIERARCH ESO ISS PBLA14 START 352.899
HIERARCH ESO ISS PBLA14 END 352.987
HIERARCH ESO ISS PBL23 START 31.47
HIERARCH ESO ISS PBL23 END 31.452
HIERARCH ESO ISS PBLA23 START 38.4
HIERARCH ESO ISS PBLA23 END 38.5
HIERARCH ESO ISS PBL24 START 123.607
HIERARCH ESO ISS PBL24 END 123.503
HIERARCH ESO ISS PBLA24 START 47.776
HIERARCH ESO ISS PBLA24 END 47.804
HIERARCH ESO ISS PBL34 START 92.694
HIERARCH ESO ISS PBL34 END 92.608
HIERARCH ESO ISS PBLA34 START 50.931
HIERARCH ESO ISS PBLA34 END 50.96
HIERARCH ESO ISS AMBI TAU0 START 0.009776
HIERARCH ESO ISS AMBI TAU0 END 0.009057
HIERARCH ESO ISS AMBI TEMP 14.43
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.79