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Note number : 0047 P/Wild 4 : 116P

Introduction

The following improved orbital elements, are from 1777 observations 2006 September 24 to 2014 November 25, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.57 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2016 January 12 at 0h TT, julian day 2457399.5.

Perihelion passage (T) 2016 January 11.62513 TT ±0.00000 TT
Argument of perihelion (ω) 173.3224980° ±0.0020099°
>Longitude of the node (Ω) 20.9901999° ۪.0021191°
Inclinaison (i) 3.6081104° ±0.0000336°
Perihelion distance (q) 2.1871104 ua ±0.0000036 ua
Eccentricity (e) 0.3724470 ±0.0000041
Semimajor axis (a) 3.4851408 ua ±0.0000286 ua
Mean motion (n) 0.15148638°/jour ±0.00000186°/jour
Period (P) 6.506 years ±0.0000800 (0.0292 day)

Non-gravitational parameters :

A1 = -0.39051 .10-8 ±0.09110 .10-8
A2 = -0.32401 .10-8 ±0.01560 .10-8
A3 = 0.52112 .10-8 ±0.01924 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 10.90± 0.05 calculated using 179 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 11.90±0.00 calculated using 607 observation(s).

Elements for the next transit through perihelion

Epoch :2022 July 17 at 0h TT, julian day 2459777.5 TT.

T =2022 July 17.04570 TT.
q :2.1970588 ua (J2000) P Q
n : 0.15114416°/jour ω : 173.2991258° -0.96902664 +0.24592882
a : 3.4903995 ua Ω : 20.9791667° -0.22939524 -0.86262777
e : 0.3705423 i : 3.6035421° -0.09146143 -0.44203206
P =6.52 years

Elements for the previous transit(s) through perihelion

Epoch :2009 July 18 at 0h TT, julian day 2455030.5 TT.

T =2009 July 18.86249 TT.
q :2.1749112 ua (J2000) P Q
n : 0.15197523°/jour ω : 173.5956854° -0.96751973 +0.25178248
a : 3.4776631 ua Ω : 21.0292786° -0.23464119 -0.86115885
e : 0.3746056 i : 3.6122792° -0.09406959 -0.44160051
P =6.49 years

Epoch :2003 January 21 at 0h TT, julian day 2452660.5 TT.

T =2003 January 21.44640 TT.
q :2.1697117 ua (J2000) P Q
n : 0.15216558°/jour ω : 173.4147272° -0.96816326 +0.24929149
a : 3.4747623 ua Ω : 21.0629091° -0.23244461 -0.86173582
e : 0.3755798 i : 3.6155679° -0.09289460 -0.44188815
P =6.48 years

Contact

Send your suggestion to the author of the notes : Patrick Rocher

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