Exposure
ID
PIONI.2025-07-21T03:42:47.606_1
Header ID
PIONI.2025-07-21T03:42:47.606
Date updated
2025-07-21 03:50:48 UTC+0000
Release date
2026-07-21 03:50:48 UTC+0000
UTC Start
2025-07-21 03:42:47.606
UTC End
2025-07-21 03:43:13.206
MJD Start
60877.15471766
MJD End
60877.1550139563
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00544
Ambient temperature (°C)
15.44
Seeing (arcsec)
0.57
Observation
ID
68885
Category
science
Program ID
115.283B.001
Program Title
WHAT MAKES THE SYMBIOTIC GIANT IN FG SER BREATHE?
Program Type
Normal
PI / COI
MERC / BOFFIN
Target
ID
51249
Name
V FG Ser
RA
273.778505
DEC
-0.31454
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 85.1440 85.0710 115.2000 115.2000
A0-J2 126.6410 126.5730 92.7000 92.7000
A0-K0 127.8880 127.8750 72.8070 72.8060
G1-J2 58.0200 58.0310 58.5000 58.5000
G1-K0 86.7260 86.7620 31.3560 31.3950
J2-K0 43.9420 43.9370 354.3410 354.4130
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.283B.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60877.15471766
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V FG Ser
RA 273.778505
DEC -0.31454
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 85.144
HIERARCH ESO ISS PBL12 END 85.071
HIERARCH ESO ISS PBLA12 START 115.2
HIERARCH ESO ISS PBLA12 END 115.2
HIERARCH ESO ISS PBL13 START 126.641
HIERARCH ESO ISS PBL13 END 126.573
HIERARCH ESO ISS PBLA13 START 92.7
HIERARCH ESO ISS PBLA13 END 92.7
HIERARCH ESO ISS PBL14 START 127.888
HIERARCH ESO ISS PBL14 END 127.875
HIERARCH ESO ISS PBLA14 START 72.807
HIERARCH ESO ISS PBLA14 END 72.806
HIERARCH ESO ISS PBL23 START 58.02
HIERARCH ESO ISS PBL23 END 58.031
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 86.726
HIERARCH ESO ISS PBL24 END 86.762
HIERARCH ESO ISS PBLA24 START 31.356
HIERARCH ESO ISS PBLA24 END 31.395
HIERARCH ESO ISS PBL34 START 43.942
HIERARCH ESO ISS PBL34 END 43.937
HIERARCH ESO ISS PBLA34 START 354.341
HIERARCH ESO ISS PBLA34 END 354.413
HIERARCH ESO ISS AMBI TAU0 START 0.00544
HIERARCH ESO ISS AMBI TAU0 END 0.00544
HIERARCH ESO ISS AMBI TEMP 15.44
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57