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Note number : 0036 P/Johnson : 48P

Introduction

The following improved orbital elements, are from 1308 observations 1963 April 24 to 2015 January 20, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.43 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2011 September 29 at 0h TT, julian day 2455833.5.

Perihelion passage (T) 2011 September 29.30138 TT ±0.00000 TT
Argument of perihelion (ω) 207.9563035° ±0.0000286°
>Longitude of the node (Ω) 117.2718014° ۪.0000275°
Inclinaison (i) 13.6622369° ±0.0000073°
Perihelion distance (q) 2.3011147 ua ±0.0000002 ua
Eccentricity (e) 0.3676587 ±0.0000003
Semimajor axis (a) 3.6390393 ua ±0.0000023 ua
Mean motion (n) 0.14197895°/jour ±0.00000013°/jour
Period (P) 6.942 years ±0.0000065 (0.0024 day)

Non-gravitational parameters :

A1 = 0.63015 .10-8 ±0.00369 .10-8
A2 = -0.01860 .10-8 ±0.00009 .10-8
A3 = 0.01942 .10-8 ±0.00682 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 12.08± 0.04 calculated using 316 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.12±0.02 calculated using 596 observation(s).

Elements for the next transit through perihelion

Epoch :2018 August 12 at 0h TT, julian day 2458342.5 TT.

T =2018 August 12.19544 TT.
q :2.0045277 ua (J2000) P Q
n : 0.15064450°/jour ω : 216.5598603° +0.82309718 +0.53207133
a : 3.4981133 ua Ω : 110.1333109° -0.45796369 +0.82860074
e : 0.4269689 i : 12.2069144° -0.33582778 +0.17412900
P =6.54 years

Elements for the previous transit(s) through perihelion

Epoch :2004 October 11 at 0h TT, julian day 2453289.5 TT.

T =2004 October 11.96776 TT.
q :2.3099739 ua (J2000) P Q
n : 0.14154771°/jour ω : 207.6945492° +0.80771592 +0.55098981
a : 3.6464266 ua Ω : 117.3293970° -0.48781445 +0.82439709
e : 0.3665102 i : 13.6582839° -0.33110733 +0.12953633
P =6.96 years

Epoch :1997 October 31 at 0h TT, julian day 2450752.5 TT.

T =1997 October 31.85739 TT.
q :2.3083045 ua (J2000) P Q
n : 0.14144810°/jour ω : 207.9936023° +0.81081753 +0.54639679
a : 3.6481384 ua Ω : 117.3540743° -0.48316973 +0.82717586
e : 0.3672651 i : 13.6645904° -0.33033611 +0.13126556
P =6.97 years

Epoch :1990 November 18 at 0h TT, julian day 2448213.5 TT.

T =1990 November 18.95701 TT.
q :2.3125592 ua (J2000) P Q
n : 0.14143332°/jour ω : 208.2982653° +0.81367068 +0.54215551
a : 3.6483925 ua Ω : 117.3493780° -0.47883389 +0.82967737
e : 0.3661430 i : 13.6611421° -0.32963332 +0.13305207
P =6.97 years

Epoch :1983 December 3 at 0h TT, julian day 2445671.5 TT.

T =1983 December 3.21445 TT.
q :2.3020196 ua (J2000) P Q
n : 0.14194844°/jour ω : 208.1752803° +0.81299208 +0.54313462
a : 3.6395607 ua Ω : 117.4004182° -0.47991880 +0.82914903
e : 0.3675007 i : 13.6740948° -0.32972993 +0.13235053
P =6.94 years

Epoch :1977 January 8 at 0h TT, julian day 2443151.5 TT.

T =1977 January 8.42825 TT.
q :2.1956619 ua (J2000) P Q
n : 0.14572464°/jour ω : 206.2313111° +0.80478695 +0.55471042
a : 3.5764108 ua Ω : 118.4718994° -0.49355030 +0.82306278
e : 0.3860711 i : 13.9032444° -0.32973636 +0.12191806
P =6.76 years

Epoch :1970 March 30 at 0h TT, julian day 2440675.5 TT.

T =1970 March 30.04159 TT.
q :2.1999612 ua (J2000) P Q
n : 0.14552408°/jour ω : 206.0226141° +0.80341164 +0.55677405
a : 3.5796959 ua Ω : 118.5347294° -0.49574687 +0.82179998
e : 0.3854335 i : 13.8986566° -0.32979506 +0.12102663
P =6.77 years

Epoch :1963 June 9 at 0h TT, julian day 2438189.5 TT.

T =1963 June 9.17915 TT.
q :2.2472174 ua (J2000) P Q
n : 0.14370525°/jour ω : 206.0664322° +0.80691833 +0.55209717
a : 3.6098372 ua Ω : 118.8320714° -0.49135549 +0.82467018
e : 0.3774740 i : 13.8652055° -0.32779960 +0.12291384
P =6.86 years

Contact

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

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