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Note number : 0094 P/Finlay : 15P

Introduction

The following improved orbital elements, are from 770 observations 2002 January 27 to 2015 January 30, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.56 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2014 December 27 at 0h TT, julian day 2457018.5.

Perihelion passage (T) 2014 December 27.05467 TT ±0.00000 TT
Argument of perihelion (ω) 347.5532740° ±0.0000908°
>Longitude of the node (Ω) 13.7772123° ۪.0000957°
Inclinaison (i) 6.7990177° ±0.0000102°
Perihelion distance (q) 0.9758969 ua ±0.0000002 ua
Eccentricity (e) 0.7201784 ±0.0000008
Semimajor axis (a) 3.4875683 ua ±0.0000106 ua
Mean motion (n) 0.15132825°/jour ±0.00000069°/jour
Period (P) 6.513 years ±0.0000296 (0.0108 day)

Non-gravitational parameters :

A1 = 0.41565 .10-8 ±0.00862 .10-8
A2 = 0.00613 .10-8 ±0.00003 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 12.72± 0.15 calculated using 105 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.02±0.02 calculated using 334 observation(s).

Elements for the next transit through perihelion

Epoch :2021 July 13 at 0h TT, julian day 2459408.5 TT.

T =2021 July 13.54010 TT.
q :0.9919926 ua (J2000) P Q
n : 0.15015811°/jour ω : 347.8221598° +0.99928906 -0.02517928
a : 3.5056631 ua Ω : 13.7140225° +0.03584922 +0.86500678
e : 0.7170314 i : 6.7974273° -0.01167056 +0.50112799
P =6.56 years

Elements for the previous transit(s) through perihelion

Epoch :2008 June 22 at 0h TT, julian day 2454639.5 TT.

T =2008 June 22.56136 TT.
q :0.9699756 ua (J2000) P Q
n : 0.15175063°/jour ω : 347.4852028° +0.99937821 -0.02098194
a : 3.4810936 ua Ω : 13.8114846° +0.03235817 +0.86500486
e : 0.7213590 i : 6.8169316° -0.01400507 +0.50132460
P =6.50 years

Epoch :2002 February 7 at 0h TT, julian day 2452312.5 TT.

T =2002 February 7.20139 TT.
q :1.0340583 ua (J2000) P Q
n : 0.14598497°/jour ω : 323.6381564° +0.99440893 -0.09651085
a : 3.5721577 ua Ω : 41.9638581° +0.10550903 +0.89144083
e : 0.7105228 i : 3.6746380° +0.00432803 +0.44274023
P =6.75 years

Contact

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

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