Exposure
ID
PIONI.2025-10-27T06:53:04.015_1
Header ID
PIONI.2025-10-27T06:53:04.015
Date updated
2025-10-27 07:00:50 UTC+0000
Release date
2026-10-27 07:00:50 UTC+0000
UTC Start
2025-10-27 06:53:04.014
UTC End
2025-10-27 06:53:29.614
MJD Start
60975.2868520175
MJD End
60975.2871483138
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003299
Ambient temperature (°C)
12.46
Seeing (arcsec)
0.87
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 90.2870 90.3010 113.2000 113.2000
A0-J2 126.7710 126.8350 90.9000 90.9000
A0-K0 122.7490 122.8370 69.1120 69.1500
G1-J2 55.1120 55.1510 52.6000 52.6000
G1-K0 85.4040 85.4320 21.7760 21.8470
J2-K0 47.3670 47.3590 345.2320 345.2890
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 60975.2868520175
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 90.287
HIERARCH ESO ISS PBL12 END 90.301
HIERARCH ESO ISS PBLA12 START 113.2
HIERARCH ESO ISS PBLA12 END 113.2
HIERARCH ESO ISS PBL13 START 126.771
HIERARCH ESO ISS PBL13 END 126.835
HIERARCH ESO ISS PBLA13 START 90.9
HIERARCH ESO ISS PBLA13 END 90.9
HIERARCH ESO ISS PBL14 START 122.749
HIERARCH ESO ISS PBL14 END 122.837
HIERARCH ESO ISS PBLA14 START 69.112
HIERARCH ESO ISS PBLA14 END 69.15
HIERARCH ESO ISS PBL23 START 55.112
HIERARCH ESO ISS PBL23 END 55.151
HIERARCH ESO ISS PBLA23 START 52.6
HIERARCH ESO ISS PBLA23 END 52.6
HIERARCH ESO ISS PBL24 START 85.404
HIERARCH ESO ISS PBL24 END 85.432
HIERARCH ESO ISS PBLA24 START 21.776
HIERARCH ESO ISS PBLA24 END 21.847
HIERARCH ESO ISS PBL34 START 47.367
HIERARCH ESO ISS PBL34 END 47.359
HIERARCH ESO ISS PBLA34 START 345.232
HIERARCH ESO ISS PBLA34 END 345.289
HIERARCH ESO ISS AMBI TAU0 START 0.003299
HIERARCH ESO ISS AMBI TAU0 END 0.003299
HIERARCH ESO ISS AMBI TEMP 12.46
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.87