Exposure
ID
PIONI.2025-09-26T01:39:55.705_1
Header ID
PIONI.2025-09-26T01:39:55.705
Date updated
2025-09-26 01:50:57 UTC+0000
Release date
2025-09-26 01:39:55 UTC+0000
UTC Start
2025-09-26 01:39:55.705
UTC End
2025-09-26 01:40:21.305
MJD Start
60944.0693947328
MJD End
60944.0696910291
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005883
Ambient temperature (°C)
12.53
Seeing (arcsec)
0.6
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 78.4140 78.3560 146.7000 146.8000
A0-J2 99.7440 99.5810 120.8000 120.9000
A0-K0 94.9350 94.7370 92.1030 92.1800
G1-J2 44.9820 44.9010 71.3000 71.3000
G1-K0 80.8490 80.7890 39.8690 39.8880
J2-K0 48.5120 48.5100 10.9560 11.0180
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 60944.0693947328
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 78.414
HIERARCH ESO ISS PBL12 END 78.356
HIERARCH ESO ISS PBLA12 START 146.7
HIERARCH ESO ISS PBLA12 END 146.8
HIERARCH ESO ISS PBL13 START 99.744
HIERARCH ESO ISS PBL13 END 99.581
HIERARCH ESO ISS PBLA13 START 120.8
HIERARCH ESO ISS PBLA13 END 120.9
HIERARCH ESO ISS PBL14 START 94.935
HIERARCH ESO ISS PBL14 END 94.737
HIERARCH ESO ISS PBLA14 START 92.103
HIERARCH ESO ISS PBLA14 END 92.18
HIERARCH ESO ISS PBL23 START 44.982
HIERARCH ESO ISS PBL23 END 44.901
HIERARCH ESO ISS PBLA23 START 71.3
HIERARCH ESO ISS PBLA23 END 71.3
HIERARCH ESO ISS PBL24 START 80.849
HIERARCH ESO ISS PBL24 END 80.789
HIERARCH ESO ISS PBLA24 START 39.869
HIERARCH ESO ISS PBLA24 END 39.888
HIERARCH ESO ISS PBL34 START 48.512
HIERARCH ESO ISS PBL34 END 48.51
HIERARCH ESO ISS PBLA34 START 10.956
HIERARCH ESO ISS PBLA34 END 11.018
HIERARCH ESO ISS AMBI TAU0 START 0.005883
HIERARCH ESO ISS AMBI TAU0 END 0.005883
HIERARCH ESO ISS AMBI TEMP 12.53
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6