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Note number : 0047 P/Wild 4 : 116P

Introduction

The following improved orbital elements, are from 1769 observations 2006 September 24 to 2014 October 31, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.97 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 11.59272 TT ±0.00000 TT
Argument of perihelion (ω) 173.3190374° ±0.0034526°
>Longitude of the node (Ω) 20.9909211° ۪.0036395°
Inclinaison (i) 3.6079769° ±0.0000601°
Perihelion distance (q) 2.1871050 ua ±0.0000061 ua
Eccentricity (e) 0.3724454 ±0.0000073
Semimajor axis (a) 3.4851229 ua ±0.0000501 ua
Mean motion (n) 0.15148754°/jour ±0.00000327°/jour
Period (P) 6.506 years ±0.0001403 (0.0512 day)

Non-gravitational parameters :

A1 = 0.81583 .10-8 ±0.14084 .10-8
A2 = -0.07884 .10-8 ±0.01813 .10-8
A3 = 0.65337 .10-8 ±0.03218 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 10.92± 0.05 calculated using 174 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 17.02813 TT.
q :2.1970563 ua (J2000) P Q
n : 0.15114231°/jour ω : 173.2929107° -0.96904961 +0.24583836
a : 3.4904280 ua Ω : 20.9800295° -0.22931485 -0.86265092
e : 0.3705481 i : 3.6033287° -0.09141967 -0.44203721
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 18.86210 TT.
q :2.1749029 ua (J2000) P Q
n : 0.15197949°/jour ω : 173.5950492° -0.96751993 +0.25178167
a : 3.4775981 ua Ω : 21.0298668° -0.23464070 -0.86115948
e : 0.3745962 i : 3.6122287° -0.09406872 -0.44159975
P =6.49 years

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

T =2003 January 21.52676 TT.
q :2.1697005 ua (J2000) P Q
n : 0.15217296°/jour ω : 173.4169599° -0.96815162 +0.24933662
a : 3.4746499 ua Ω : 21.0633484° -0.23248503 -0.86172474
e : 0.3755628 i : 3.6156018° -0.09291471 -0.44188429
P =6.48 years

Contact

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

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