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Note number : 0047 P/Wild 4 : 116P

Introduction

The following improved orbital elements, are from 2681 observations 2001 September 16 to 2010 August 3, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.45 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2009 July 19 at 0h TT, julian day 2455031.5.

Perihelion passage (T) 2009 July 18.85983 TT ±0.00000 TT
Argument of perihelion (ω) 173.5942692° ±0.0001000°
>Longitude of the node (Ω) 21.0301723° ۪.0001058°
Inclinaison (i) 3.6122204° ±0.0000045°
Perihelion distance (q) 2.1748879 ua ±0.0000003 ua
Eccentricity (e) 0.3745766 ±0.0000004
Semimajor axis (a) 3.4774646 ua ±0.0000030 ua
Mean motion (n) 0.15198824°/jour ±0.00000019°/jour
Period (P) 6.485 years ±0.0000083 (0.0030 day)

Non-gravitational parameters :

A1 = 3.00199 .10-8 ±0.01685 .10-8
A2 = -0.57084 .10-8 ±0.00859 .10-8
A3 = 0.60664 .10-8 ±0.00771 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) avec H1 = 10.29± 0.04 calculé à l'aide de 423 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) avec H2 = 11.86±0.01 calculé à l'aide de 1038 observation(s).

Elements for the next transit through perihelion

Epoch :2016 January 11 at 0h TT, julian day 2457398.5 TT.

T =2016 January 11.43138 TT.
q :2.1870866 ua (J2000) P Q
n : 0.15150122°/jour ω : 173.3135092° -0.96891299 +0.24637254
a : 3.4849132 ua Ω : 20.9911453° -0.22980172 -0.86248810
e : 0.3724129 i : 3.6079965° -0.09164489 -0.44205751
P =6.51 years

Elements for the previous transit(s) through perihelion

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

T =2003 January 21.58768 TT.
q :2.1696921 ua (J2000) P Q
n : 0.15217498°/jour ω : 173.4211579° -0.96813181 +0.24941354
a : 3.4746192 ua Ω : 21.0637023° -0.23255362 -0.86170658
e : 0.3755598 i : 3.6155642° -0.09294953 -0.44187629
P =6.48 years

Epoch :1996 August 31 at 0h TT, julian day 2450326.5 TT.

T =1996 August 31.13372 TT.
q :1.9888034 ua (J2000) P Q
n : 0.16011427°/jour ω : 170.7603753° -0.97496303 +0.22102855
a : 3.3587887 ua Ω : 22.0549535° -0.20793744 -0.86738724
e : 0.4078808 i : 3.7198447° -0.07879796 -0.44585396
P =6.16 years

Contact

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

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