Exposure
ID
PIONI.2025-07-25T04:09:24.110_1
Header ID
PIONI.2025-07-25T04:09:24.110
Date updated
2025-07-25 04:15:50 UTC+0000
Release date
2025-07-25 04:09:24 UTC+0000
UTC Start
2025-07-25 04:09:24.110
UTC End
2025-07-25 04:09:49.710
MJD Start
60881.173195723
MJD End
60881.1734920193
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002761
Ambient temperature (°C)
12.61
Seeing (arcsec)
0.5
Observation
ID
68967
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
51192
Name
HD 165634
RA
272.019636
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.0830 25.0790 154.1000 154.2000
A0-D0 29.9680 29.9420 81.0000 81.1000
A0-C1 21.8300 21.8190 128.1360 128.2300
B2-D0 32.9940 32.9830 34.4000 34.4000
B2-C1 10.9910 10.9870 34.3430 34.3880
D0-C1 22.0030 21.9960 214.4050 214.4510
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 60881.173195723
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.019636
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.083
HIERARCH ESO ISS PBL12 END 25.079
HIERARCH ESO ISS PBLA12 START 154.1
HIERARCH ESO ISS PBLA12 END 154.2
HIERARCH ESO ISS PBL13 START 29.968
HIERARCH ESO ISS PBL13 END 29.942
HIERARCH ESO ISS PBLA13 START 81.0
HIERARCH ESO ISS PBLA13 END 81.1
HIERARCH ESO ISS PBL14 START 21.83
HIERARCH ESO ISS PBL14 END 21.819
HIERARCH ESO ISS PBLA14 START 128.136
HIERARCH ESO ISS PBLA14 END 128.23
HIERARCH ESO ISS PBL23 START 32.994
HIERARCH ESO ISS PBL23 END 32.983
HIERARCH ESO ISS PBLA23 START 34.4
HIERARCH ESO ISS PBLA23 END 34.4
HIERARCH ESO ISS PBL24 START 10.991
HIERARCH ESO ISS PBL24 END 10.987
HIERARCH ESO ISS PBLA24 START 34.343
HIERARCH ESO ISS PBLA24 END 34.388
HIERARCH ESO ISS PBL34 START 22.003
HIERARCH ESO ISS PBL34 END 21.996
HIERARCH ESO ISS PBLA34 START 214.405
HIERARCH ESO ISS PBLA34 END 214.451
HIERARCH ESO ISS AMBI TAU0 START 0.002761
HIERARCH ESO ISS AMBI TAU0 END 0.002761
HIERARCH ESO ISS AMBI TEMP 12.61
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.5