Exposure
ID
PIONI.2025-10-27T06:38:21.953_1
Header ID
PIONI.2025-10-27T06:38:21.953
Date updated
2025-10-27 06:45:38 UTC+0000
Release date
2026-10-27 06:45:38 UTC+0000
UTC Start
2025-10-27 06:38:21.952
UTC End
2025-10-27 06:38:47.552
MJD Start
60975.2766429665
MJD End
60975.276939262796
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0029995
Ambient temperature (°C)
12.57
Seeing (arcsec)
0.9650000000000001
Observation
ID
71014
Category
science
Program ID
116.28SN.001
Program Title
DO WINDS AND PULSATIONS ALTER RED GIANTS' ROCHE LOBES? THE UNIQUE TEST CASE OF THE SYMBIOTIC BINARY V1261 ORI
Program Type
Normal
PI / COI
MERC / BOFFIN
Target
ID
52698
Name
V V1261 Ori
RA
80.576834
DEC
-8.66614
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 89.7620 89.7890 112.8000 112.8000
A0-J2 124.9190 125.0040 90.4000 90.4000
A0-K0 120.3920 120.4960 68.1220 68.1650
G1-J2 54.1040 54.1470 51.2000 51.2000
G1-K0 84.7040 84.7330 19.9860 20.0610
J2-K0 47.5480 47.5410 343.8870 343.9400
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28SN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60975.2766429665
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V V1261 Ori
RA 80.576834
DEC -8.66614
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 89.762
HIERARCH ESO ISS PBL12 END 89.789
HIERARCH ESO ISS PBLA12 START 112.8
HIERARCH ESO ISS PBLA12 END 112.8
HIERARCH ESO ISS PBL13 START 124.919
HIERARCH ESO ISS PBL13 END 125.004
HIERARCH ESO ISS PBLA13 START 90.4
HIERARCH ESO ISS PBLA13 END 90.4
HIERARCH ESO ISS PBL14 START 120.392
HIERARCH ESO ISS PBL14 END 120.496
HIERARCH ESO ISS PBLA14 START 68.122
HIERARCH ESO ISS PBLA14 END 68.165
HIERARCH ESO ISS PBL23 START 54.104
HIERARCH ESO ISS PBL23 END 54.147
HIERARCH ESO ISS PBLA23 START 51.2
HIERARCH ESO ISS PBLA23 END 51.2
HIERARCH ESO ISS PBL24 START 84.704
HIERARCH ESO ISS PBL24 END 84.733
HIERARCH ESO ISS PBLA24 START 19.986
HIERARCH ESO ISS PBLA24 END 20.061
HIERARCH ESO ISS PBL34 START 47.548
HIERARCH ESO ISS PBL34 END 47.541
HIERARCH ESO ISS PBLA34 START 343.887
HIERARCH ESO ISS PBLA34 END 343.94
HIERARCH ESO ISS AMBI TAU0 START 0.002525
HIERARCH ESO ISS AMBI TAU0 END 0.003474
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 1.05
HIERARCH ESO ISS AMBI FWHM END 0.88