Exposure
ID
PIONI.2025-10-27T06:40:14.496_1
Header ID
PIONI.2025-10-27T06:40:14.496
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 06:40:14.496
UTC End
2025-10-27 06:40:40.096
MJD Start
60975.2779455599
MJD End
60975.2782418562
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0033095
Ambient temperature (°C)
12.43
Seeing (arcsec)
0.895
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 89.8460 89.8720 112.8000 112.8000
A0-J2 125.1840 125.2650 90.4000 90.5000
A0-K0 120.7160 120.8160 68.2550 68.2960
G1-J2 54.2400 54.2810 51.4000 51.4000
G1-K0 84.7930 84.8210 20.2210 20.2940
J2-K0 47.5250 47.5170 344.0550 344.1080
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 60975.2779455599
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 89.846
HIERARCH ESO ISS PBL12 END 89.872
HIERARCH ESO ISS PBLA12 START 112.8
HIERARCH ESO ISS PBLA12 END 112.8
HIERARCH ESO ISS PBL13 START 125.184
HIERARCH ESO ISS PBL13 END 125.265
HIERARCH ESO ISS PBLA13 START 90.4
HIERARCH ESO ISS PBLA13 END 90.5
HIERARCH ESO ISS PBL14 START 120.716
HIERARCH ESO ISS PBL14 END 120.816
HIERARCH ESO ISS PBLA14 START 68.255
HIERARCH ESO ISS PBLA14 END 68.296
HIERARCH ESO ISS PBL23 START 54.24
HIERARCH ESO ISS PBL23 END 54.281
HIERARCH ESO ISS PBLA23 START 51.4
HIERARCH ESO ISS PBLA23 END 51.4
HIERARCH ESO ISS PBL24 START 84.793
HIERARCH ESO ISS PBL24 END 84.821
HIERARCH ESO ISS PBLA24 START 20.221
HIERARCH ESO ISS PBLA24 END 20.294
HIERARCH ESO ISS PBL34 START 47.525
HIERARCH ESO ISS PBL34 END 47.517
HIERARCH ESO ISS PBLA34 START 344.055
HIERARCH ESO ISS PBLA34 END 344.108
HIERARCH ESO ISS AMBI TAU0 START 0.003474
HIERARCH ESO ISS AMBI TAU0 END 0.003145
HIERARCH ESO ISS AMBI TEMP 12.43
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.91