Exposure
ID
PIONI.2025-10-27T06:51:48.472_1
Header ID
PIONI.2025-10-27T06:51:48.472
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 06:51:48.472
UTC End
2025-10-27 06:52:14.072
MJD Start
60975.2859776858
MJD End
60975.2862739821
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00262
Ambient temperature (°C)
12.44
Seeing (arcsec)
1.07
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 90.2540 90.2700 113.1000 113.2000
A0-J2 126.6310 126.6990 90.9000 90.9000
A0-K0 122.5620 122.6540 69.0310 69.0710
G1-J2 55.0300 55.0700 52.4000 52.5000
G1-K0 85.3430 85.3720 21.6260 21.6990
J2-K0 47.3820 47.3750 345.1140 345.1720
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 60975.2859776858
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 90.254
HIERARCH ESO ISS PBL12 END 90.27
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.2
HIERARCH ESO ISS PBL13 START 126.631
HIERARCH ESO ISS PBL13 END 126.699
HIERARCH ESO ISS PBLA13 START 90.9
HIERARCH ESO ISS PBLA13 END 90.9
HIERARCH ESO ISS PBL14 START 122.562
HIERARCH ESO ISS PBL14 END 122.654
HIERARCH ESO ISS PBLA14 START 69.031
HIERARCH ESO ISS PBLA14 END 69.071
HIERARCH ESO ISS PBL23 START 55.03
HIERARCH ESO ISS PBL23 END 55.07
HIERARCH ESO ISS PBLA23 START 52.4
HIERARCH ESO ISS PBLA23 END 52.5
HIERARCH ESO ISS PBL24 START 85.343
HIERARCH ESO ISS PBL24 END 85.372
HIERARCH ESO ISS PBLA24 START 21.626
HIERARCH ESO ISS PBLA24 END 21.699
HIERARCH ESO ISS PBL34 START 47.382
HIERARCH ESO ISS PBL34 END 47.375
HIERARCH ESO ISS PBLA34 START 345.114
HIERARCH ESO ISS PBLA34 END 345.172
HIERARCH ESO ISS AMBI TAU0 START 0.00262
HIERARCH ESO ISS AMBI TAU0 END 0.00262
HIERARCH ESO ISS AMBI TEMP 12.44
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 1.07