Exposure
ID
PIONI.2025-06-17T07:29:46.490_1
Header ID
PIONI.2025-06-17T07:29:46.490
Date updated
2025-06-17 07:36:13 UTC+0000
Release date
2025-06-17 07:29:46 UTC+0000
UTC Start
2025-06-17 07:29:46.490
UTC End
2025-06-17 07:30:12.090
MJD Start
60843.31234363
MJD End
60843.3126399263
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002844
Ambient temperature (°C)
6.96
Seeing (arcsec)
0.98
Observation
ID
68115
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
50631
Name
HD 165634
RA
272.019635
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 82.9950 82.9380 136.9000 137.0000
A0-J2 111.7510 111.6120 111.9000 112.0000
A0-K0 108.8800 108.7250 86.5340 86.6010
G1-J2 50.6040 50.5430 68.1000 68.2000
G1-K0 84.9500 84.9060 37.7290 37.7620
J2-K0 48.5930 48.5920 5.9310 5.9960
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 60843.31234363
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.019635
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 82.995
HIERARCH ESO ISS PBL12 END 82.938
HIERARCH ESO ISS PBLA12 START 136.9
HIERARCH ESO ISS PBLA12 END 137.0
HIERARCH ESO ISS PBL13 START 111.751
HIERARCH ESO ISS PBL13 END 111.612
HIERARCH ESO ISS PBLA13 START 111.9
HIERARCH ESO ISS PBLA13 END 112.0
HIERARCH ESO ISS PBL14 START 108.88
HIERARCH ESO ISS PBL14 END 108.725
HIERARCH ESO ISS PBLA14 START 86.534
HIERARCH ESO ISS PBLA14 END 86.601
HIERARCH ESO ISS PBL23 START 50.604
HIERARCH ESO ISS PBL23 END 50.543
HIERARCH ESO ISS PBLA23 START 68.1
HIERARCH ESO ISS PBLA23 END 68.2
HIERARCH ESO ISS PBL24 START 84.95
HIERARCH ESO ISS PBL24 END 84.906
HIERARCH ESO ISS PBLA24 START 37.729
HIERARCH ESO ISS PBLA24 END 37.762
HIERARCH ESO ISS PBL34 START 48.593
HIERARCH ESO ISS PBL34 END 48.592
HIERARCH ESO ISS PBLA34 START 5.931
HIERARCH ESO ISS PBLA34 END 5.996
HIERARCH ESO ISS AMBI TAU0 START 0.002844
HIERARCH ESO ISS AMBI TAU0 END 0.002844
HIERARCH ESO ISS AMBI TEMP 6.96
HIERARCH ESO ISS AMBI FWHM START 0.98
HIERARCH ESO ISS AMBI FWHM END 0.98