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Note number : 0085 P/Arend-Rigaux : 49P

Introduction

The following improved orbital elements, are from 2816 observations 1997 June 28 to 2013 June 18, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.38 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2011 October 19 at 0h TT, julian day 2455853.5.

Perihelion passage (T) 2011 October 19.07863 TT ±0.00000 TT
Argument of perihelion (ω) 332.7902987° ±0.0000123°
>Longitude of the node (Ω) 118.8764594° ۪.0000144°
Inclinaison (i) 19.0502831° ±0.0000041°
Perihelion distance (q) 1.4238315 ua ±0.0000001 ua
Eccentricity (e) 0.6003479 ±0.0000002
Semimajor axis (a) 3.5626774 ua ±0.0000023 ua
Mean motion (n) 0.14656806°/jour ±0.00000014°/jour
Period (P) 6.725 years ±0.0000064 (0.0023 day)

Non-gravitational parameters :

A1 = -0.05364 .10-8 ±0.00235 .10-8
A2 = -0.00352 .10-8 ±0.00011 .10-8
A3 = 0.01191 .10-8 ±0.00126 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) avec H1 = 12.87± 0.02 calculé à l'aide de 362 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) avec H2 = 14.52±0.01 calculé à l'aide de 1765 observation(s).

Elements for the next transit through perihelion

Epoch :2018 July 15 at 0h TT, julian day 2458314.5 TT.

T =2018 July 15.49412 TT.
q :1.4296080 ua (J2000) P Q
n : 0.14618101°/jour ω : 332.8884710° -0.05173758 -0.95687516
a : 3.5689633 ua Ω : 118.8241974° +0.96518705 -0.12139905
e : 0.5994333 i : 19.0431547° +0.25639262 +0.26391704
P =6.74 years

Elements for the previous transit(s) through perihelion

Epoch :2005 February 24 at 0h TT, julian day 2453425.5 TT.

T =2005 February 24.55790 TT.
q :1.3685549 ua (J2000) P Q
n : 0.14901820°/jour ω : 330.7017741° -0.06206789 -0.96160507
a : 3.5235181 ua Ω : 121.6477210° +0.96592048 -0.12530912
e : 0.6115942 i : 18.3019447° +0.25128711 +0.24415837
P =6.61 years

Epoch :1998 July 12 at 0h TT, julian day 2451006.5 TT.

T =1998 July 12.59077 TT.
q :1.3685946 ua (J2000) P Q
n : 0.14904001°/jour ω : 330.5615005° -0.06108320 -0.96177777
a : 3.5231743 ua Ω : 121.7288239° +0.96612371 -0.12415363
e : 0.6115450 i : 18.2905038° +0.25074652 +0.24406843
P =6.61 years

Epoch :1991 October 2 at 0h TT, julian day 2448531.5 TT.

T =1991 October 2.70270 TT.
q :1.4378343 ua (J2000) P Q
n : 0.14458853°/jour ω : 329.0756045° -0.04213297 -0.96467720
a : 3.5951208 ua Ω : 122.1337542° +0.96793467 -0.10392403
e : 0.6000595 i : 17.8837467° +0.24764348 +0.24206960
P =6.82 years

Contact

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

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