Exposure
ID
PIONI.2025-10-27T06:23:18.760_1
Header ID
PIONI.2025-10-27T06:23:18.760
Date updated
2025-10-27 06:30:36 UTC+0000
Release date
2026-10-27 06:30:36 UTC+0000
UTC Start
2025-10-27 06:23:18.759
UTC End
2025-10-27 06:23:44.359
MJD Start
60975.2661893452
MJD End
60975.2664856415
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003064
Ambient temperature (°C)
12.6
Seeing (arcsec)
1.02
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 88.9030 88.9440 112.4000 112.4000
A0-J2 122.5000 122.6060 89.8000 89.8000
A0-K0 117.5640 117.6840 66.9920 67.0400
G1-J2 52.9570 53.0050 49.6000 49.7000
G1-K0 84.0100 84.0370 18.0510 18.1300
J2-K0 47.7330 47.7260 342.5810 342.6320
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 60975.2661893452
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 88.903
HIERARCH ESO ISS PBL12 END 88.944
HIERARCH ESO ISS PBLA12 START 112.4
HIERARCH ESO ISS PBLA12 END 112.4
HIERARCH ESO ISS PBL13 START 122.5
HIERARCH ESO ISS PBL13 END 122.606
HIERARCH ESO ISS PBLA13 START 89.8
HIERARCH ESO ISS PBLA13 END 89.8
HIERARCH ESO ISS PBL14 START 117.564
HIERARCH ESO ISS PBL14 END 117.684
HIERARCH ESO ISS PBLA14 START 66.992
HIERARCH ESO ISS PBLA14 END 67.04
HIERARCH ESO ISS PBL23 START 52.957
HIERARCH ESO ISS PBL23 END 53.005
HIERARCH ESO ISS PBLA23 START 49.6
HIERARCH ESO ISS PBLA23 END 49.7
HIERARCH ESO ISS PBL24 START 84.01
HIERARCH ESO ISS PBL24 END 84.037
HIERARCH ESO ISS PBLA24 START 18.051
HIERARCH ESO ISS PBLA24 END 18.13
HIERARCH ESO ISS PBL34 START 47.733
HIERARCH ESO ISS PBL34 END 47.726
HIERARCH ESO ISS PBLA34 START 342.581
HIERARCH ESO ISS PBLA34 END 342.632
HIERARCH ESO ISS AMBI TAU0 START 0.003064
HIERARCH ESO ISS AMBI TAU0 END 0.003064
HIERARCH ESO ISS AMBI TEMP 12.6
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 0.97