Exposure
ID
PIONI.2025-07-21T03:31:03.094_1
Header ID
PIONI.2025-07-21T03:31:03.094
Date updated
2025-07-21 03:35:53 UTC+0000
Release date
2026-07-21 03:35:52 UTC+0000
UTC Start
2025-07-21 03:31:03.094
UTC End
2025-07-21 03:31:28.694
MJD Start
60877.146563591
MJD End
60877.146859887296
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002602
Ambient temperature (°C)
15.51
Seeing (arcsec)
0.76
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 86.4820 86.4180 114.8000 114.8000
A0-J2 127.7960 127.7460 92.6000 92.6000
A0-K0 127.9740 127.9770 72.8060 72.8080
G1-J2 57.7490 57.7660 58.3000 58.3000
G1-K0 86.0140 86.0510 30.5560 30.5990
J2-K0 44.0600 44.0540 352.9480 353.0190
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 60877.146563591
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 86.482
HIERARCH ESO ISS PBL12 END 86.418
HIERARCH ESO ISS PBLA12 START 114.8
HIERARCH ESO ISS PBLA12 END 114.8
HIERARCH ESO ISS PBL13 START 127.796
HIERARCH ESO ISS PBL13 END 127.746
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 127.974
HIERARCH ESO ISS PBL14 END 127.977
HIERARCH ESO ISS PBLA14 START 72.806
HIERARCH ESO ISS PBLA14 END 72.808
HIERARCH ESO ISS PBL23 START 57.749
HIERARCH ESO ISS PBL23 END 57.766
HIERARCH ESO ISS PBLA23 START 58.3
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 86.014
HIERARCH ESO ISS PBL24 END 86.051
HIERARCH ESO ISS PBLA24 START 30.556
HIERARCH ESO ISS PBLA24 END 30.599
HIERARCH ESO ISS PBL34 START 44.06
HIERARCH ESO ISS PBL34 END 44.054
HIERARCH ESO ISS PBLA34 START 352.948
HIERARCH ESO ISS PBLA34 END 353.019
HIERARCH ESO ISS AMBI TAU0 START 0.002602
HIERARCH ESO ISS AMBI TAU0 END 0.002602
HIERARCH ESO ISS AMBI TEMP 15.51
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.76