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Note number : 0094 P/Finlay : 15P

Introduction

The following improved orbital elements, are from 321 observations 2002 January 27 to 2014 December 6, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.68 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 27.05566 TT ±0.00000 TT
Argument of perihelion (ω) 347.5530127° ±0.0009978°
>Longitude of the node (Ω) 13.7775814° ۪.0010750°
Inclinaison (i) 6.7989795° ±0.0000444°
Perihelion distance (q) 0.9759021 ua ±0.0000005 ua
Eccentricity (e) 0.7201759 ±0.0000018
Semimajor axis (a) 3.4875556 ua ±0.0000239 ua
Mean motion (n) 0.15132907°/jour ±0.00000156°/jour
Period (P) 6.513 years ±0.0000670 (0.0245 day)

Non-gravitational parameters :

A1 = 0.45200 .10-8 ±0.01223 .10-8
A2 = 0.00650 .10-8 ±0.00008 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 13.64± 0.11 calculated using 74 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 15.55±0.02 calculated using 89 observation(s).

Elements for the next transit through perihelion

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

T =2021 July 13.54279 TT.
q :0.9919977 ua (J2000) P Q
n : 0.15015886°/jour ω : 347.8217152° +0.99928908 -0.02517792
a : 3.5056515 ua Ω : 13.7143908° +0.03584833 +0.86500724
e : 0.7170290 i : 6.7973894° -0.01167177 +0.50112728
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 22.56130 TT.
q :0.9699808 ua (J2000) P Q
n : 0.15175153°/jour ω : 347.4851240° +0.99937809 -0.02098698
a : 3.4810800 ua Ω : 13.8118536° +0.03236282 +0.86500511
e : 0.7213564 i : 6.8168931° -0.01400308 +0.50132396
P =6.50 years

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

T =2002 February 7.20188 TT.
q :1.0340636 ua (J2000) P Q
n : 0.14598584°/jour ω : 323.6419610° +0.99440817 -0.09651915
a : 3.5721435 ua Ω : 41.9605352° +0.10551596 +0.89143807
e : 0.7105201 i : 3.6747801° +0.00433317 +0.44274396
P =6.75 years

Contact

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

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