Exposure
ID
PIONI.2025-07-25T23:56:55.420_1
Header ID
PIONI.2025-07-25T23:56:55.420
Date updated
2025-07-26 00:05:54 UTC+0000
Release date
2025-07-25 23:56:55 UTC+0000
UTC Start
2025-07-25 23:56:55.420
UTC End
2025-07-25 23:57:21.020
MJD Start
60881.9978636592
MJD End
60881.998159955496
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003868
Ambient temperature (°C)
11.79
Seeing (arcsec)
0.48
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 22.4530 22.4730 130.1000 130.1000
A0-D0 28.0520 28.0780 47.1000 47.2000
A0-C1 18.5840 18.6140 100.1410 100.1970
B2-D0 33.7260 33.7270 5.7000 5.8000
B2-C1 11.2350 11.2350 5.6710 5.7570
D0-C1 22.4910 22.4920 185.7230 185.8090
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 60881.9978636592
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 22.453
HIERARCH ESO ISS PBL12 END 22.473
HIERARCH ESO ISS PBLA12 START 130.1
HIERARCH ESO ISS PBLA12 END 130.1
HIERARCH ESO ISS PBL13 START 28.052
HIERARCH ESO ISS PBL13 END 28.078
HIERARCH ESO ISS PBLA13 START 47.1
HIERARCH ESO ISS PBLA13 END 47.2
HIERARCH ESO ISS PBL14 START 18.584
HIERARCH ESO ISS PBL14 END 18.614
HIERARCH ESO ISS PBLA14 START 100.141
HIERARCH ESO ISS PBLA14 END 100.197
HIERARCH ESO ISS PBL23 START 33.726
HIERARCH ESO ISS PBL23 END 33.727
HIERARCH ESO ISS PBLA23 START 5.7
HIERARCH ESO ISS PBLA23 END 5.8
HIERARCH ESO ISS PBL24 START 11.235
HIERARCH ESO ISS PBL24 END 11.235
HIERARCH ESO ISS PBLA24 START 5.671
HIERARCH ESO ISS PBLA24 END 5.757
HIERARCH ESO ISS PBL34 START 22.491
HIERARCH ESO ISS PBL34 END 22.492
HIERARCH ESO ISS PBLA34 START 185.723
HIERARCH ESO ISS PBLA34 END 185.809
HIERARCH ESO ISS AMBI TAU0 START 0.003868
HIERARCH ESO ISS AMBI TAU0 END 0.003868
HIERARCH ESO ISS AMBI TEMP 11.79
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.47