Exposure
ID
PIONI.2025-10-27T06:22:41.134_1
Header ID
PIONI.2025-10-27T06:22:41.134
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 06:22:41.134
UTC End
2025-10-27 06:23:06.734
MJD Start
60975.2657538657
MJD End
60975.266050162
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0030125
Ambient temperature (°C)
12.57
Seeing (arcsec)
1.05
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 88.8600 88.9010 112.4000 112.4000
A0-J2 122.3870 122.4940 89.8000 89.8000
A0-K0 117.4360 117.5570 66.9420 66.9900
G1-J2 52.9070 52.9540 49.5000 49.6000
G1-K0 83.9820 84.0090 17.9670 18.0460
J2-K0 47.7410 47.7330 342.5280 342.5780
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 60975.2657538657
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 88.86
HIERARCH ESO ISS PBL12 END 88.901
HIERARCH ESO ISS PBLA12 START 112.4
HIERARCH ESO ISS PBLA12 END 112.4
HIERARCH ESO ISS PBL13 START 122.387
HIERARCH ESO ISS PBL13 END 122.494
HIERARCH ESO ISS PBLA13 START 89.8
HIERARCH ESO ISS PBLA13 END 89.8
HIERARCH ESO ISS PBL14 START 117.436
HIERARCH ESO ISS PBL14 END 117.557
HIERARCH ESO ISS PBLA14 START 66.942
HIERARCH ESO ISS PBLA14 END 66.99
HIERARCH ESO ISS PBL23 START 52.907
HIERARCH ESO ISS PBL23 END 52.954
HIERARCH ESO ISS PBLA23 START 49.5
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 83.982
HIERARCH ESO ISS PBL24 END 84.009
HIERARCH ESO ISS PBLA24 START 17.967
HIERARCH ESO ISS PBLA24 END 18.046
HIERARCH ESO ISS PBL34 START 47.741
HIERARCH ESO ISS PBL34 END 47.733
HIERARCH ESO ISS PBLA34 START 342.528
HIERARCH ESO ISS PBLA34 END 342.578
HIERARCH ESO ISS AMBI TAU0 START 0.002961
HIERARCH ESO ISS AMBI TAU0 END 0.003064
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 1.03
HIERARCH ESO ISS AMBI FWHM END 1.07