Exposure
ID
PIONI.2025-09-25T23:29:42.378_1
Header ID
PIONI.2025-09-25T23:29:42.378
Date updated
2025-09-25 23:40:40 UTC+0000
Release date
2025-09-25 23:29:42 UTC+0000
UTC Start
2025-09-25 23:29:42.378
UTC End
2025-09-25 23:30:07.978
MJD Start
60943.978962712
MJD End
60943.979259008294
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006166
Ambient temperature (°C)
15.19
Seeing (arcsec)
0.97
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 89.2660 89.2370 123.4000 123.5000
A0-J2 126.1300 126.0660 100.0000 100.0000
A0-K0 124.3800 124.3120 77.6100 77.6750
G1-J2 56.7090 56.6820 61.2000 61.3000
G1-K0 89.1970 89.1790 31.7710 31.8240
J2-K0 48.6090 48.6090 356.7680 356.8340
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 60943.978962712
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 89.266
HIERARCH ESO ISS PBL12 END 89.237
HIERARCH ESO ISS PBLA12 START 123.4
HIERARCH ESO ISS PBLA12 END 123.5
HIERARCH ESO ISS PBL13 START 126.13
HIERARCH ESO ISS PBL13 END 126.066
HIERARCH ESO ISS PBLA13 START 100.0
HIERARCH ESO ISS PBLA13 END 100.0
HIERARCH ESO ISS PBL14 START 124.38
HIERARCH ESO ISS PBL14 END 124.312
HIERARCH ESO ISS PBLA14 START 77.61
HIERARCH ESO ISS PBLA14 END 77.675
HIERARCH ESO ISS PBL23 START 56.709
HIERARCH ESO ISS PBL23 END 56.682
HIERARCH ESO ISS PBLA23 START 61.2
HIERARCH ESO ISS PBLA23 END 61.3
HIERARCH ESO ISS PBL24 START 89.197
HIERARCH ESO ISS PBL24 END 89.179
HIERARCH ESO ISS PBLA24 START 31.771
HIERARCH ESO ISS PBLA24 END 31.824
HIERARCH ESO ISS PBL34 START 48.609
HIERARCH ESO ISS PBL34 END 48.609
HIERARCH ESO ISS PBLA34 START 356.768
HIERARCH ESO ISS PBLA34 END 356.834
HIERARCH ESO ISS AMBI TAU0 START 0.006166
HIERARCH ESO ISS AMBI TAU0 END 0.006166
HIERARCH ESO ISS AMBI TEMP 15.19
HIERARCH ESO ISS AMBI FWHM START 0.97
HIERARCH ESO ISS AMBI FWHM END 0.97