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Table 1.

Mean values of the MCMC fit with their 68% confidence interval.

Parameter Symbol
Fixed values

Reference epoch (MJD) Tref 56492
Position epoch (MJD) Tpos 57205

Fitted values

Right ascension α
Declination δ
Distance (kpc) d
Right-ascension proper motion (mas yr−1) μα
Declination proper motion (mas yr−1) μδ
Radial proper motion (mas yr−1) μd
Dispersion measure (pc cm−3) DM
Dispersion measure variation (pc cm−3 yr−1) DM′

Rescaled spin frequency (Hz)
Rescaled spin frequency derivative (10−15 Hz s−1)

Orbit of pulsar around centre of mass (CM) of inner binary
Orbital period (days) PI
Projected semi-major axis (lt-s) ap sin iI
Inclination offset (°) δi = iI − iO
Laplace-Lagrange eI sin ωI
Laplace-Lagrange eI cos ωI
Time of ascending node (MJD) tascI
Long. of asc. nodes offset (°) δΩ = ΩO − ΩI

Orbit of CM of inner binary around CM of the whole system
Orbital period (days) PO
Projected semi-major axis (lt-s) ab sin iO
Co-projected semi-major axis (lt-s) ab cos iO
Laplace-Lagrange eO sin ωO
Laplace-Lagrange eO cos ωO
Time of ascending node (MJD) tascO
Longitude of outer ascending node (°) ΩO
Inner mass ratio mi/mp
ToA uncertainty rescaling EFAC
Derived values
Parallel proper motion (km s−1) V
Plane-of-sky proper motion (km s−1) V
Spin frequency (Hz) f
Spin frequency derivative (10−15 Hz s−1) f
Orbit of pulsar around CM of inner binary
Semi-major axis (lt-s) ap
Orbital inclination (°) iI
Orbital eccentricity eI
Longitude of periastron (°) ωI
Time of periastron passage (MJD) tpI
Longitude of asc. node (°) ΩI
Orbit of CM of inner binary around CM of the whole system
Semi-major axis (lt-s) ab
Orbital inclination (°) iO
Orbital eccentricity eO
Longitude of periastron (°) ωO
Time of periastron passage (MJD) tpO

Pulsar mass (M) mp
Inner-companion mass (M) mi
Outer-companion mass (M) mo

Notes. The error bars apply to the digits between parenthesis. Upper-case indices I, O refer to the inner and outer binary respectively while lower-case indices p, i, o refer to the pulsar, inner white dwarf and outer white dwarf respectively.

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