Exposure
ID
PIONI.2025-08-15T02:39:25.223_1
Header ID
PIONI.2025-08-15T02:39:25.223
Date updated
2025-08-15 02:45:39 UTC+0000
Release date
2026-08-15 02:45:39 UTC+0000
UTC Start
2025-08-15 02:39:25.223
UTC End
2025-08-15 02:39:50.823
MJD Start
60902.1107085967
MJD End
60902.111004893
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0019234999999999999
Ambient temperature (°C)
11.14
Seeing (arcsec)
1.295
Observation
ID
68194
Category
science
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
50684
Name
V VX Sgr
RA
272.016859
DEC
-22.22406
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 64.5380 64.4840 279.9000 279.9000
K0-D0 91.3890 91.3190 258.2000 258.3000
K0-J3 55.7910 55.7840 342.6630 342.7420
G2-D0 39.4010 39.3900 221.1000 221.1000
G2-J3 63.1460 63.1220 48.0500 48.0880
D0-J3 102.3660 102.3310 45.3620 45.3990
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VC.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60902.1107085967
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.016859
DEC -22.22406
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 64.538
HIERARCH ESO ISS PBL12 END 64.484
HIERARCH ESO ISS PBLA12 START 279.9
HIERARCH ESO ISS PBLA12 END 279.9
HIERARCH ESO ISS PBL13 START 91.389
HIERARCH ESO ISS PBL13 END 91.319
HIERARCH ESO ISS PBLA13 START 258.2
HIERARCH ESO ISS PBLA13 END 258.3
HIERARCH ESO ISS PBL14 START 55.791
HIERARCH ESO ISS PBL14 END 55.784
HIERARCH ESO ISS PBLA14 START 342.663
HIERARCH ESO ISS PBLA14 END 342.742
HIERARCH ESO ISS PBL23 START 39.401
HIERARCH ESO ISS PBL23 END 39.39
HIERARCH ESO ISS PBLA23 START 221.1
HIERARCH ESO ISS PBLA23 END 221.1
HIERARCH ESO ISS PBL24 START 63.146
HIERARCH ESO ISS PBL24 END 63.122
HIERARCH ESO ISS PBLA24 START 48.05
HIERARCH ESO ISS PBLA24 END 48.088
HIERARCH ESO ISS PBL34 START 102.366
HIERARCH ESO ISS PBL34 END 102.331
HIERARCH ESO ISS PBLA34 START 45.362
HIERARCH ESO ISS PBLA34 END 45.399
HIERARCH ESO ISS AMBI TAU0 START 0.002091
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 11.14
HIERARCH ESO ISS AMBI FWHM START 1.19
HIERARCH ESO ISS AMBI FWHM END 1.4