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Note number : 0047 P/Wild 4 : 116P

Introduction

The following improved orbital elements, are from 1793 observations 2006 September 24 to 2014 December 22, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 1.77 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2014 December 30 at 0h TT, julian day 2457021.5.

Perihelion passage (T) 2016 January 11.90612 TT ±0.02459 TT
Argument of perihelion (ω) 173.4264373° ±0.0012538°
>Longitude of the node (Ω) 21.0205087° ۪.0012227°
Inclinaison (i) 3.6079137° ±0.0001437°
Perihelion distance (q) 2.1855820 ua ±0.0000763 ua
Eccentricity (e) 0.3726383 ±0.0000351
Semimajor axis (a) 3.4837670 ua ±0.0003166 ua
Mean motion (n) 0.15157599°/jour ±0.00002067°/jour
Period (P) 6.503 years ±0.0008865 (0.3238 day)

Non-gravitational parameters :

A1 = 1.38376 .10-8 ±0.26185 .10-8
A2 = -0.07416 .10-8 ±0.03362 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 10.90± 0.05 calculated using 180 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 16.99132 TT.
q :2.1970515 ua (J2000) P Q
n : 0.15114368°/jour ω : 173.2924531° -0.96906093 +0.24579339
a : 3.4904068 ua Ω : 20.9778460° -0.22927494 -0.86265406
e : 0.3705457 i : 3.6042606° -0.09139975 -0.44205608
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 18.86139 TT.
q :2.1748984 ua (J2000) P Q
n : 0.15198101°/jour ω : 173.5957422° -0.96752054 +0.25177935
a : 3.4775750 ua Ω : 21.0290377° -0.23463838 -0.86115899
e : 0.3745934 i : 3.6123560° -0.09406827 -0.44160203
P =6.49 years

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

T =2003 January 21.54546 TT.
q :2.1696960 ua (J2000) P Q
n : 0.15217454°/jour ω : 173.4182198° -0.96814664 +0.24935616
a : 3.4746259 ua Ω : 21.0632381° -0.23250201 -0.86172233
e : 0.3755598 i : 3.6153119° -0.09292420 -0.44187796
P =6.48 years

Contact

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

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