Exposure
ID
PIONI.2025-09-26T01:41:48.147_1
Header ID
PIONI.2025-09-26T01:41:48.147
Date updated
2025-09-26 01:50:57 UTC+0000
Release date
2025-09-26 01:41:48 UTC+0000
UTC Start
2025-09-26 01:41:48.147
UTC End
2025-09-26 01:42:13.747
MJD Start
60944.0706961504
MJD End
60944.070992446694
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005307
Ambient temperature (°C)
12.54
Seeing (arcsec)
0.63
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 78.2340 78.1770 147.1000 147.3000
A0-J2 99.2330 99.0690 121.2000 121.4000
A0-K0 94.3110 94.1120 92.3450 92.4210
G1-J2 44.7270 44.6450 71.4000 71.4000
G1-K0 80.6600 80.5990 39.9330 39.9530
J2-K0 48.5070 48.5050 11.1480 11.2100
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 60944.0706961504
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 78.234
HIERARCH ESO ISS PBL12 END 78.177
HIERARCH ESO ISS PBLA12 START 147.1
HIERARCH ESO ISS PBLA12 END 147.3
HIERARCH ESO ISS PBL13 START 99.233
HIERARCH ESO ISS PBL13 END 99.069
HIERARCH ESO ISS PBLA13 START 121.2
HIERARCH ESO ISS PBLA13 END 121.4
HIERARCH ESO ISS PBL14 START 94.311
HIERARCH ESO ISS PBL14 END 94.112
HIERARCH ESO ISS PBLA14 START 92.345
HIERARCH ESO ISS PBLA14 END 92.421
HIERARCH ESO ISS PBL23 START 44.727
HIERARCH ESO ISS PBL23 END 44.645
HIERARCH ESO ISS PBLA23 START 71.4
HIERARCH ESO ISS PBLA23 END 71.4
HIERARCH ESO ISS PBL24 START 80.66
HIERARCH ESO ISS PBL24 END 80.599
HIERARCH ESO ISS PBLA24 START 39.933
HIERARCH ESO ISS PBLA24 END 39.953
HIERARCH ESO ISS PBL34 START 48.507
HIERARCH ESO ISS PBL34 END 48.505
HIERARCH ESO ISS PBLA34 START 11.148
HIERARCH ESO ISS PBLA34 END 11.21
HIERARCH ESO ISS AMBI TAU0 START 0.005307
HIERARCH ESO ISS AMBI TAU0 END 0.005307
HIERARCH ESO ISS AMBI TEMP 12.54
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.63