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Note number : 0094 P/Finlay : 15P

Introduction

The following improved orbital elements, are from 1160 observations 2002 January 27 to 2015 March 27, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.54 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 27.05499 TT ±0.00000 TT
Argument of perihelion (ω) 347.5540135° ±0.0000666°
>Longitude of the node (Ω) 13.7769740° ۪.0000700°
Inclinaison (i) 6.7990970° ±0.0000072°
Perihelion distance (q) 0.9758936 ua ±0.0000001 ua
Eccentricity (e) 0.7201846 ±0.0000006
Semimajor axis (a) 3.4876333 ua ±0.0000073 ua
Mean motion (n) 0.15132402°/jour ±0.00000047°/jour
Period (P) 6.513 years ±0.0000204 (0.0075 day)

Non-gravitational parameters :

A1 = 0.24893 .10-8 ±0.00772 .10-8
A2 = 0.00621 .10-8 ±0.00004 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 12.20± 0.13 calculated using 139 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.91±0.03 calculated using 777 observation(s).

Elements for the next transit through perihelion

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

T =2021 July 13.54199 TT.
q :0.9919906 ua (J2000) P Q
n : 0.15015394°/jour ω : 347.8237489° +0.99928848 -0.02520278
a : 3.5057280 ua Ω : 13.7137816° +0.03586950 +0.86500522
e : 0.7170372 i : 6.7975056° -0.01165858 +0.50112952
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 22.56141 TT.
q :0.9699723 ua (J2000) P Q
n : 0.15174636°/jour ω : 347.4851014° +0.99937834 -0.02097601
a : 3.4811591 ua Ω : 13.8112469° +0.03235299 +0.86500432
e : 0.7213651 i : 6.8170111° -0.01400787 +0.50132578
P =6.50 years

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

T =2002 February 7.20030 TT.
q :1.0340538 ua (J2000) P Q
n : 0.14598126°/jour ω : 323.6264300° +0.99441069 -0.09649088
a : 3.5722181 ua Ω : 41.9744241° +0.10549298 +0.89144861
e : 0.7105289 i : 3.6742309° +0.00431414 +0.44272890
P =6.75 years

Contact

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

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