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Table E.1.

Mean values of the MCMC runs of the PL3 and Planet models with their 68% median confidence intervals.

Parameter Symbol PL3GR PlanetGR
Fixed values

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

Fitted values

Right ascension α 3 h 37 m 43 s . 82700 ( 43 ) 67 + 66 $ 3^{\mathrm{h}}37^{\mathrm{m}}43^{\mathrm{s}}.82700(43)_{-67}^{+66} $ 3 h 37 m 43 s . 82700 ( 94 ) 64 + 63 $ 3^{\mathrm{h}}37^{\mathrm{m}}43^{\mathrm{s}}.82700(94)_{-64}^{+63} $
Declination δ 17 deg 15 m 14 s . 817 ( 63 ) 37 + 38 $ 17^{\mathrm{deg}}15^{\mathrm{m}}14^{\mathrm{s}}.817(63)_{-37}^{+38} $ 17 deg 15 m 14 s . 817 ( 75 ) 33 + 40 $ 17^{\mathrm{deg}}15^{\mathrm{m}}14^{\mathrm{s}}.817(75)_{-33}^{+40} $
Distance (kpc) d 1160 51 + 53 $ 1160_{-51}^{+53} $ 1182 55 + 53 $ 1182_{-55}^{+53} $
Right-ascension proper motion (mas yr−1) μα 6.1 ( 37 ) 68 + 70 $ 6.1(37)_{-68}^{+70} $ 5.9 ( 82 ) 80 + 70 $ 5.9(82)_{-80}^{+70} $
Declination proper motion (mas yr−1) μδ 5 . ( 34 ) 26 + 25 $ -5.(34)_{-26}^{+25} $ 4 . ( 83 ) 25 + 29 $ -4.(83)_{-25}^{+29} $
Radial proper motion (mas yr−1) μd 5 . ( 63 ) 32 + 31 $ 5.(63)_{-32}^{+31} $ 5 . ( 52 ) 28 + 32 $ 5.(52)_{-28}^{+32} $
Dispersion measure (pc cm−3) DM 21.316 ( 46 ) 12 + 12 $ 21.316(46)_{-12}^{+12} $ 21.316 ( 46 ) 11 + 11 $ 21.316(46)_{-11}^{+11} $
Dispersion measure variation (pc cm−3 yr−1) DM′ ( 1.7 ) 2.1 + 2.1 × 10 5 $ (1.7)_{-2.1}^{+2.1} \times 10^{-5} $ ( 1.6 ) 2.0 + 1.9 × 10 5 $ (1.6)_{-2.0}^{+1.9} \times 10^{-5} $
Re-scaled spin frequency (Hz) f ¯ $ \bar{f} $ 365.953337902243 ( 85 ) 81 + 81 $ 365.953337902243(85)_{-81}^{+81} $ 365.9533379022 ( 56 ) 11 + 11 $ 365.9533379022(56)_{-11}^{+11} $
Re-scaled spin frequency derivative (10−15 Hz s−1) f ¯ $ \bar{f}{\prime} $ 2.35631 ( 40 ) 45 + 48 × 10 15 $ -2.35631(40)_{-45}^{+48} \times 10^{-15} $ 2.356 ( 45 ) 12 + 11 × 10 15 $ -2.356(45)_{-12}^{+11} \times 10^{-15} $

Inner orbit I of pulsar p w.r.t. inner-binary centre of mass b

Orbital period (d) PI 1.62939900 ( 75 ) 42 + 42 $ 1.62939900(75)_{-42}^{+42} $ 1.62939900 ( 83 ) 41 + 38 $ 1.62939900(83)_{-41}^{+38} $
Projected semi-major axis (lt-s) apsiniI 1.2175276 ( 17 ) 56 + 56 $ 1.2175276(17)_{-56}^{+56} $ 1.2175276 ( 25 ) 56 + 54 $ 1.2175276(25)_{-56}^{+54} $
Inclination offset (°) δi = iI − iO 1 . 2 2.4 + 2.3 × 10 3 $ 1.2_{-2.4}^{+2.3} \times 10^{-3} $ 8 23 + 21 × 10 4 $ 8_{-23}^{+21} \times 10^{-4} $
Laplace-Lagrange eIcosωp 6.937 ( 38 ) 40 + 40 × 10 4 $ 6.937(38)_{-40}^{+40} \times 10^{-4} $ 6.937 ( 32 ) 42 + 37 × 10 4 $ 6.937(32)_{-42}^{+37} \times 10^{-4} $
Laplace-Lagrange eIsinωp 8.59 ( 37 ) 41 + 40 × 10 5 $ -8.59(37)_{-41}^{+40} \times 10^{-5} $ 8.59 ( 42 ) 35 + 36 × 10 5 $ -8.59(42)_{-35}^{+36} \times 10^{-5} $
Time of ascending node (MJD) tascp 55917.15894 ( 93 ) 19 + 19 $ 55917.15894(93)_{-19}^{+19} $ 55917.15894 ( 89 ) 17 + 19 $ 55917.15894(89)_{-17}^{+19} $
Long. of asc. nodes offset (°) δΩ = Ωb − Ωp ( 1.7 ) 1.3 + 1.3 × 10 4 $ (1.7)_{-1.3}^{+1.3} \times 10^{-4} $ ( 1.5 ) 1.2 + 1.2 × 10 4 $ (1.5)_{-1.2}^{+1.2} \times 10^{-4} $

Outer orbit O of b w.r.t. triple-system centre of mass t

Orbital period (d) PO 327.25512 ( 55 ) 10 + 10 $ 327.25512(55)_{-10}^{+10} $ 327.25512 ( 61 ) 11 + 10 $ 327.25512(61)_{-11}^{+10} $
Projected semi-major axis (lt-s) absiniO 74.672344 ( 35 ) 23 + 22 $ 74.672344(35)_{-23}^{+22} $ 74.672344 ( 31 ) 22 + 21 $ 74.672344(31)_{-22}^{+21} $
Co-projected semi-major axis (lt-s) abcosiO 91.4 ( 10 ) 37 + 37 $ 91.4(10)_{-37}^{+37} $ 91.4 ( 02 ) 32 + 35 $ 91.4(02)_{-32}^{+35} $
Laplace-Lagrange eOcosωb 0.03511469 ( 40 ) 27 + 28 $ 0.03511469(40)_{-27}^{+28} $ 0.03511469 ( 43 ) 27 + 28 $ 0.03511469(43)_{-27}^{+28} $
Laplace-Lagrange eOsinωb 0.00352492 ( 40 ) 18 + 19 $ -0.00352492(40)_{-18}^{+19} $ 0.00352492 ( 22 ) 18 + 19 $ -0.00352492(22)_{-18}^{+19} $
Time of ascending node (MJD) tascb 56230.195329 ( 47 ) 82 + 83 $ 56230.195329(47)_{-82}^{+83} $ 56230.195329 ( 01 ) 78 + 79 $ 56230.195329(01)_{-78}^{+79} $
Longitude of ascending node (°) Ωb 145 . 9 1.5 + 1.4 $ 145.9_{-1.5}^{+1.4} $ 148 . 0 1.5 + 1.7 $ 148.0_{-1.5}^{+1.7} $

Inner mass ratio mi/mp 0.1373 ( 76 ) 12 + 12 $ 0.1373(76)_{-12}^{+12} $ 0.1373 ( 77 ) 12 + 12 $ 0.1373(77)_{-12}^{+12} $
ToA uncertainty re-scaling EFAC 1.11 ( 77 ) 73 + 76 $ 1.11(77)_{-73}^{+76} $ 1.11 ( 72 ) 79 + 75 $ 1.11(72)_{-79}^{+75} $

Derived values

Parallel proper motion (km s−1) V 29 . 77 1.1 + 0.90 $ 29.77_{-1.1}^{+0.90} $ 29 . ( 72 ) 83 + 76 $ 29.(72)_{-83}^{+76} $
Plane-of-sky proper motion (km s−1) V 43 . 0 2.0 + 2.2 $ 43.0_{-2.0}^{+2.2} $ 41 . 4 2.2 + 2.1 $ 41.4_{-2.2}^{+2.1} $

Spin frequency (Hz) f 365.9533629 ( 82 ) 13 + 13 $ 365.9533629(82)_{-13}^{+13} $ 365.9533629 ( 80 ) 12 + 12 $ 365.9533629(80)_{-12}^{+12} $
Spin frequency derivative (10−15 Hz s−1) f ˙ $ \dot f $ 2.29 ( 06 ) 40 + 43 × 10 15 $ -2.29(06)_{-40}^{+43} \times 10^{-15} $ 2.29 ( 67 ) 43 + 41 × 10 15 $ -2.29(67)_{-43}^{+41} \times 10^{-15} $

Inner orbit I of p/b

Semi-major axis (lt-s) ap 1.924 ( 46 ) 48 + 48 $ 1.924(46)_{-48}^{+48} $ 1.924 ( 39 ) 43 + 46 $ 1.924(39)_{-43}^{+46} $
Orbital inclination (°) iI 39.2 ( 47 ) 11 + 11 $ 39.2(47)_{-11}^{+11} $ 39.2 ( 48 ) 11 + 10 $ 39.2(48)_{-11}^{+10} $
Orbital eccentricity eI 6.990 ( 40 ) 40 + 40 × 10 4 $ 6.990(40)_{-40}^{+40} \times 10^{-4} $ 6.990 ( 36 ) 42 + 37 × 10 4 $ 6.990(36)_{-42}^{+37} \times 10^{-4} $
Longitude of periastron (°) ωp 7.06 ( 16 ) 33 + 33 $ -7.06(16)_{-33}^{+33} $ 7.06 ( 20 ) 28 + 29 $ -7.06(20)_{-28}^{+29} $
Time of periastron passage (MJD) tpI 55917.1269 ( 88 ) 15 + 15 $ 55917.1269(88)_{-15}^{+15} $ 55917.1269 ( 86 ) 13 + 13 $ 55917.1269(86)_{-13}^{+13} $
Longitude of asc. node (°) Ωp 145 . 9 1.5 + 1.4 $ 145.9_{-1.5}^{+1.4} $ 148 . 0 1.5 + 1.7 $ 148.0_{-1.5}^{+1.7} $

Outer orbit O of b w.r.t. triple-system centre of mass t
Semi-major axis (lt-s) ab 1.180 ( 33 ) 29 + 28 × 10 2 $ 1.180(33)_{-29}^{+28} \times 10^{2} $ 1.180 ( 27 ) 25 + 27 × 10 2 $ 1.180(27)_{-25}^{+27} \times 10^{2} $
Orbital inclination (°) iO 39.2 ( 45 ) 11 + 11 $ 39.2(45)_{-11}^{+11} $ 39.2 ( 48 ) 10 + 10 $ 39.2(48)_{-10}^{+10} $
Orbital eccentricity eO 0.03529117 ( 20 ) 29 + 29 $ 0.03529117(20)_{-29}^{+29} $ 0.03529117 ( 21 ) 28 + 29 $ 0.03529117(21)_{-28}^{+29} $
Longitude of periastron (°) ωb 5.73232 ( 85 ) 27 + 27 $ -5.73232(85)_{-27}^{+27} $ 5.73232 ( 56 ) 27 + 27 $ -5.73232(56)_{-27}^{+27} $
Time of periastron passage (MJD) tpO 56224.98440 ( 20 ) 19 + 19 $ 56224.98440(20)_{-19}^{+19} $ 56224.98440 ( 42 ) 19 + 19 $ 56224.98440(42)_{-19}^{+19} $

Pulsar mass (M) mp 1.43 ( 82 ) 12 + 12 $ 1.43(82)_{-12}^{+12} $ 1.43 ( 80 ) 11 + 12 $ 1.43(80)_{-11}^{+12} $
Inner-companion mass (M) mi 0.197 ( 58 ) 15 + 15 $ 0.197(58)_{-15}^{+15} $ 0.197 ( 55 ) 14 + 15 $ 0.197(55)_{-14}^{+15} $
Outer-companion mass (M) mo 0.410 ( 18 ) 31 + 31 $ 0.410(18)_{-31}^{+31} $ 0.410 ( 12 ) 29 + 31 $ 0.410(12)_{-29}^{+31} $

Error bars apply to the digits between parenthesis and delimit the 68% median confidence region, namely the interval excluding 16% of the distribution above and below it. The central value quoted is the best-fit value. Upper-case indices I, O refer to the inner and outer binaries respectively. Lower-case indices p, i, o refer to the pulsar, inner white dwarf, and outer white dwarf, respectively; b refers to the inner-binary centre of mass. Data spans MJD 56492 − 59480. Solar System ephemeris is DE430. Model-specific parameters are reported separately in Table 1.

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