Exposure
ID
PIONI.2025-08-23T04:39:01.927_1
Header ID
PIONI.2025-08-23T04:39:01.927
Date updated
2025-08-23 04:45:36 UTC+0000
Release date
2025-08-23 04:39:01 UTC+0000
UTC Start
2025-08-23 04:39:01.927
UTC End
2025-08-23 04:39:27.527
MJD Start
60910.1937723029
MJD End
60910.194068599194
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002598
Ambient temperature (°C)
2.71
Seeing (arcsec)
0.93
Observation
ID
70075
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
51928
Name
HD 165634
RA
272.020268
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.1470 48.1480 183.8000 183.9000
A0-J2 87.2200 87.0560 131.9000 132.1000
A0-J6 142.0160 141.8760 40.9170 40.9230
B5-J2 68.8330 68.6310 98.5000 98.6000
B5-J6 182.7220 182.6180 31.7600 31.7790
J2-J6 167.9520 167.9530 9.6300 9.7030
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 60910.1937723029
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.020268
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.147
HIERARCH ESO ISS PBL12 END 48.148
HIERARCH ESO ISS PBLA12 START 183.8
HIERARCH ESO ISS PBLA12 END 183.9
HIERARCH ESO ISS PBL13 START 87.22
HIERARCH ESO ISS PBL13 END 87.056
HIERARCH ESO ISS PBLA13 START 131.9
HIERARCH ESO ISS PBLA13 END 132.1
HIERARCH ESO ISS PBL14 START 142.016
HIERARCH ESO ISS PBL14 END 141.876
HIERARCH ESO ISS PBLA14 START 40.917
HIERARCH ESO ISS PBLA14 END 40.923
HIERARCH ESO ISS PBL23 START 68.833
HIERARCH ESO ISS PBL23 END 68.631
HIERARCH ESO ISS PBLA23 START 98.5
HIERARCH ESO ISS PBLA23 END 98.6
HIERARCH ESO ISS PBL24 START 182.722
HIERARCH ESO ISS PBL24 END 182.618
HIERARCH ESO ISS PBLA24 START 31.76
HIERARCH ESO ISS PBLA24 END 31.779
HIERARCH ESO ISS PBL34 START 167.952
HIERARCH ESO ISS PBL34 END 167.953
HIERARCH ESO ISS PBLA34 START 9.63
HIERARCH ESO ISS PBLA34 END 9.703
HIERARCH ESO ISS AMBI TAU0 START 0.002598
HIERARCH ESO ISS AMBI TAU0 END 0.002598
HIERARCH ESO ISS AMBI TEMP 2.71
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.93