Exposure
ID
PIONI.2025-09-26T01:40:33.332_1
Header ID
PIONI.2025-09-26T01:40:33.332
Date updated
2025-09-26 01:50:57 UTC+0000
Release date
2025-09-26 01:40:33 UTC+0000
UTC Start
2025-09-26 01:40:33.331
UTC End
2025-09-26 01:40:58.931
MJD Start
60944.0698302253
MJD End
60944.0701265216
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005595
Ambient temperature (°C)
12.53
Seeing (arcsec)
0.595
Observation
ID
70510
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
52285
Name
HD 165634
RA
272.019637
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 78.3530 78.2960 146.8000 147.0000
A0-J2 99.5720 99.4090 121.0000 121.1000
A0-K0 94.7260 94.5270 92.1840 92.2600
G1-J2 44.8960 44.8150 71.3000 71.4000
G1-K0 80.7860 80.7250 39.8890 39.9090
J2-K0 48.5100 48.5090 11.0180 11.0800
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 60944.0698302253
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.019637
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 78.353
HIERARCH ESO ISS PBL12 END 78.296
HIERARCH ESO ISS PBLA12 START 146.8
HIERARCH ESO ISS PBLA12 END 147.0
HIERARCH ESO ISS PBL13 START 99.572
HIERARCH ESO ISS PBL13 END 99.409
HIERARCH ESO ISS PBLA13 START 121.0
HIERARCH ESO ISS PBLA13 END 121.1
HIERARCH ESO ISS PBL14 START 94.726
HIERARCH ESO ISS PBL14 END 94.527
HIERARCH ESO ISS PBLA14 START 92.184
HIERARCH ESO ISS PBLA14 END 92.26
HIERARCH ESO ISS PBL23 START 44.896
HIERARCH ESO ISS PBL23 END 44.815
HIERARCH ESO ISS PBLA23 START 71.3
HIERARCH ESO ISS PBLA23 END 71.4
HIERARCH ESO ISS PBL24 START 80.786
HIERARCH ESO ISS PBL24 END 80.725
HIERARCH ESO ISS PBLA24 START 39.889
HIERARCH ESO ISS PBLA24 END 39.909
HIERARCH ESO ISS PBL34 START 48.51
HIERARCH ESO ISS PBL34 END 48.509
HIERARCH ESO ISS PBLA34 START 11.018
HIERARCH ESO ISS PBLA34 END 11.08
HIERARCH ESO ISS AMBI TAU0 START 0.005883
HIERARCH ESO ISS AMBI TAU0 END 0.005307
HIERARCH ESO ISS AMBI TEMP 12.53
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.59