Exposure
ID
PIONI.2025-08-15T02:26:31.252_1
Header ID
PIONI.2025-08-15T02:26:31.252
Date updated
2025-08-15 02:30:50 UTC+0000
Release date
2025-08-15 02:26:31 UTC+0000
UTC Start
2025-08-15 02:26:31.252
UTC End
2025-08-15 02:26:56.852
MJD Start
60902.1017506002
MJD End
60902.1020468965
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002927
Ambient temperature (°C)
11.1
Seeing (arcsec)
0.87
Observation
ID
70013
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
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 65.9470 65.9060 280.2000 280.3000
K0-D0 92.1950 92.1350 258.9000 258.9000
K0-J3 56.5030 56.5010 341.1740 341.2520
G2-D0 39.0240 39.0110 220.9000 221.0000
G2-J3 62.6550 62.6290 48.1520 48.2020
D0-J3 101.4870 101.4480 45.3720 45.4210
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 60902.1017506002
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 65.947
HIERARCH ESO ISS PBL12 END 65.906
HIERARCH ESO ISS PBLA12 START 280.2
HIERARCH ESO ISS PBLA12 END 280.3
HIERARCH ESO ISS PBL13 START 92.195
HIERARCH ESO ISS PBL13 END 92.135
HIERARCH ESO ISS PBLA13 START 258.9
HIERARCH ESO ISS PBLA13 END 258.9
HIERARCH ESO ISS PBL14 START 56.503
HIERARCH ESO ISS PBL14 END 56.501
HIERARCH ESO ISS PBLA14 START 341.174
HIERARCH ESO ISS PBLA14 END 341.252
HIERARCH ESO ISS PBL23 START 39.024
HIERARCH ESO ISS PBL23 END 39.011
HIERARCH ESO ISS PBLA23 START 220.9
HIERARCH ESO ISS PBLA23 END 221.0
HIERARCH ESO ISS PBL24 START 62.655
HIERARCH ESO ISS PBL24 END 62.629
HIERARCH ESO ISS PBLA24 START 48.152
HIERARCH ESO ISS PBLA24 END 48.202
HIERARCH ESO ISS PBL34 START 101.487
HIERARCH ESO ISS PBL34 END 101.448
HIERARCH ESO ISS PBLA34 START 45.372
HIERARCH ESO ISS PBLA34 END 45.421
HIERARCH ESO ISS AMBI TAU0 START 0.002927
HIERARCH ESO ISS AMBI TAU0 END 0.002927
HIERARCH ESO ISS AMBI TEMP 11.1
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.83