Exposure
ID
PIONI.2025-08-21T02:21:05.744_1
Header ID
PIONI.2025-08-21T02:21:05.744
Date updated
2025-08-21 02:30:44 UTC+0000
Release date
2025-08-21 02:21:05 UTC+0000
UTC Start
2025-08-21 02:21:05.744
UTC End
2025-08-21 02:21:31.344
MJD Start
60908.0979831452
MJD End
60908.098279441496
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
10.45
Seeing (arcsec)
1.76
Observation
ID
70056
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
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 64.8660 64.8230 59.1000 59.1000
A0-J2 122.1850 122.0900 103.9000 104.0000
A0-J3 126.1940 126.1190 54.4620 54.5090
G2-J2 88.8550 88.8220 134.9000 135.0000
G2-J3 61.7620 61.7290 49.6030 49.6480
J2-J3 103.9670 103.9670 351.1960 351.2700
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 60908.0979831452
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 A0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 64.866
HIERARCH ESO ISS PBL12 END 64.823
HIERARCH ESO ISS PBLA12 START 59.1
HIERARCH ESO ISS PBLA12 END 59.1
HIERARCH ESO ISS PBL13 START 122.185
HIERARCH ESO ISS PBL13 END 122.09
HIERARCH ESO ISS PBLA13 START 103.9
HIERARCH ESO ISS PBLA13 END 104.0
HIERARCH ESO ISS PBL14 START 126.194
HIERARCH ESO ISS PBL14 END 126.119
HIERARCH ESO ISS PBLA14 START 54.462
HIERARCH ESO ISS PBLA14 END 54.509
HIERARCH ESO ISS PBL23 START 88.855
HIERARCH ESO ISS PBL23 END 88.822
HIERARCH ESO ISS PBLA23 START 134.9
HIERARCH ESO ISS PBLA23 END 135.0
HIERARCH ESO ISS PBL24 START 61.762
HIERARCH ESO ISS PBL24 END 61.729
HIERARCH ESO ISS PBLA24 START 49.603
HIERARCH ESO ISS PBLA24 END 49.648
HIERARCH ESO ISS PBL34 START 103.967
HIERARCH ESO ISS PBL34 END 103.967
HIERARCH ESO ISS PBLA34 START 351.196
HIERARCH ESO ISS PBLA34 END 351.27
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 10.45
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76