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Note number : 0062 P/Kushida-Muramatsu : 147P

• Introduction
• Elements
• Formulæ for magnitudes
• Elements for the next transit through perihelion
• Elements for the previous transit(s) through perihelion

• Comparison with observations
• Ephemerides of the comet  (ou click to open TEXT file TEXTE)
• Load the Postscript file of the note

Introduction

The following improved orbital elements, are from 102 observations 1994 December 8 to 2009 February 28. Perturbations by all nine planets were taken into account, and relativity effect of the sun.

The mean residual is 0.84 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2008 September 23 at 0h TT, julian day 2454732.5.

Perihelion passage (T)	2008 September 22.93757 TT	±0.00000 TT
Argument of perihelion (ω)	346.8645277°	±0.0005410°
>Longitude of the node (Ω)	93.7569575°	۪.0005558°
Inclinaison (i)	2.3672003°	±0.0000259°
Perihelion distance (q)	2.7563686 ua	±0.0000009 ua
Eccentricity (e)	0.2759189	±0.0000009
Semimajor axis (a)	3.8067123 ua	±0.0000059 ua
Mean motion (n)	0.13270247°/jour	±0.00000031°/jour
Period (P)	7.427 years	±0.0000172 (0.0063 day)

Formulæ for magnitudes

Total magnitude :
m₁ = H₁ + 5log(Δ) + 10 log(r) avec H₁ = 14.07± 0.07 calculé à l'aide de 38 observation(s).
Nuclear magnitude :
m₂ = H₂ + 5log(Δ) + 5 log(r) avec H₂ = 16.43±0.07 calculé à l'aide de 12 observation(s).

Elements for the next transit through perihelion

Epoch :2016 February 27 at 0h TT, julian day 2457445.5 TT.

T =2016 February 27.88864 TT.
q :2.7464983 ua	(J2000)	P	Q
n : 0.13305793°/jour	ω : 347.0859930°	+0.15951788	-0.98633393
a : 3.7999295 ua	Ω : 93.7240436°	+0.90936664	+0.13056201
e : 0.2772239	i : 2.3676359°	+0.38419572	+0.10049348
P =7.41 years

Elements for the previous transit(s) through perihelion

Epoch :2001 April 29 at 0h TT, julian day 2452028.5 TT.

T =2001 April 29.56029 TT.
q :2.7523746 ua	(J2000)	P	Q
n : 0.13255844°/jour	ω : 347.5044063°	+0.15166609	-0.98757164
a : 3.8094692 ua	Ω : 93.7614161°	+0.91038719	+0.12332504
e : 0.2774913	i : 2.3678957°	+0.38495788	+0.09743300
P =7.44 years

Epoch :1993 December 10 at 0h TT, julian day 2449331.5 TT.

T =1993 December 10.27348 TT.
q :2.7450014 ua	(J2000)	P	Q
n : 0.13313312°/jour	ω : 348.2409276°	+0.13862733	-0.98948616
a : 3.7984986 ua	Ω : 93.7806032°	+0.91193990	+0.11130829
e : 0.2773457	i : 2.3679103°	+0.38619695	+0.09234499
P =7.40 years

Contact

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

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