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Note number : 0094 P/Finlay : 15P

Introduction

The following improved orbital elements, are from 1079 observations 2002 January 27 to 2015 February 28, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.53 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 27.05477 TT ±0.00000 TT
Argument of perihelion (ω) 347.5536650° ±0.0000674°
>Longitude of the node (Ω) 13.7770260° ۪.0000709°
Inclinaison (i) 6.7990771° ±0.0000076°
Perihelion distance (q) 0.9758938 ua ±0.0000001 ua
Eccentricity (e) 0.7201822 ±0.0000006
Semimajor axis (a) 3.4876037 ua ±0.0000078 ua
Mean motion (n) 0.15132594°/jour ±0.00000051°/jour
Period (P) 6.513 years ±0.0000220 (0.0080 day)

Non-gravitational parameters :

A1 = 0.32442 .10-8 ±0.00818 .10-8
A2 = 0.00617 .10-8 ±0.00003 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 12.37± 0.14 calculated using 123 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.78±0.03 calculated using 703 observation(s).

Elements for the next transit through perihelion

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

T =2021 July 13.54093 TT.
q :0.9919901 ua (J2000) P Q
n : 0.15015584°/jour ω : 347.8230149° +0.99928877 -0.02519091
a : 3.5056985 ua Ω : 13.7138350° +0.03585924 +0.86500582
e : 0.7170350 i : 6.7974862° -0.01166457 +0.50112907
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 22.56140 TT.
q :0.9699725 ua (J2000) P Q
n : 0.15174830°/jour ω : 347.4851340° +0.99937831 -0.02097748
a : 3.4811294 ua Ω : 13.8112985° +0.03235427 +0.86500445
e : 0.7213627 i : 6.8169912° -0.01400716 +0.50132549
P =6.50 years

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

T =2002 February 7.20069 TT.
q :1.0340541 ua (J2000) P Q
n : 0.14598296°/jour ω : 323.6312080° +0.99441002 -0.09649847
a : 3.5721905 ua Ω : 41.9700873° +0.10549905 +0.89144545
e : 0.7105266 i : 3.6744030° +0.00431952 +0.44273362
P =6.75 years

Contact

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

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