Exposure
ID
PIONI.2025-08-22T00:30:20.505_1
Header ID
PIONI.2025-08-22T00:30:20.505
Date updated
2025-08-22 00:41:01 UTC+0000
Release date
2025-08-22 00:30:20 UTC+0000
UTC Start
2025-08-22 00:30:20.505
UTC End
2025-08-22 00:30:58.905
MJD Start
60909.021070661
MJD End
60909.02151510544
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.71
Seeing (arcsec)
1.76
Observation
ID
70064
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
51947
Name
eps Sgr
RA
276.04272
DEC
-34.38532
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 68.3320 68.3300 46.2000 46.3000
A0-J2 128.0810 128.1310 87.9000 88.0000
A0-J3 132.3600 132.3520 41.8830 41.9880
G2-J2 89.3790 89.4260 118.4000 118.5000
G2-J3 64.4340 64.4290 37.2640 37.3660
J2-J3 101.7890 101.8130 337.0910 337.1670
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 60909.021070661
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Sgr
RA 276.04272
DEC -34.38532
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 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 68.332
HIERARCH ESO ISS PBL12 END 68.33
HIERARCH ESO ISS PBLA12 START 46.2
HIERARCH ESO ISS PBLA12 END 46.3
HIERARCH ESO ISS PBL13 START 128.081
HIERARCH ESO ISS PBL13 END 128.131
HIERARCH ESO ISS PBLA13 START 87.9
HIERARCH ESO ISS PBLA13 END 88.0
HIERARCH ESO ISS PBL14 START 132.36
HIERARCH ESO ISS PBL14 END 132.352
HIERARCH ESO ISS PBLA14 START 41.883
HIERARCH ESO ISS PBLA14 END 41.988
HIERARCH ESO ISS PBL23 START 89.379
HIERARCH ESO ISS PBL23 END 89.426
HIERARCH ESO ISS PBLA23 START 118.4
HIERARCH ESO ISS PBLA23 END 118.5
HIERARCH ESO ISS PBL24 START 64.434
HIERARCH ESO ISS PBL24 END 64.429
HIERARCH ESO ISS PBLA24 START 37.264
HIERARCH ESO ISS PBLA24 END 37.366
HIERARCH ESO ISS PBL34 START 101.789
HIERARCH ESO ISS PBL34 END 101.813
HIERARCH ESO ISS PBLA34 START 337.091
HIERARCH ESO ISS PBLA34 END 337.167
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.71
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76