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Note number : 0039 P/Pons-Winnecke : 7P

• 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 498 observations 1951 February 3 to 2008 December 23, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.49 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2008 September 26 at 0h TT, julian day 2454735.5.

Perihelion passage (T)	2008 September 26.63347 TT	±0.00000 TT
Argument of perihelion (ω)	172.3291640°	±0.0000296°
>Longitude of the node (Ω)	93.4230249°	۪.0000466°
Inclinaison (i)	22.3103474°	±0.0000118°
Perihelion distance (q)	1.2532656 ua	±0.0000002 ua
Eccentricity (e)	0.6349106	±0.0000006
Semimajor axis (a)	3.4327640 ua	±0.0000062 ua
Mean motion (n)	0.15496662°/jour	±0.00000042°/jour
Period (P)	6.360 years	±0.0000172 (0.0063 day)

Non-gravitational parameters :

A₁ = 0.02447 .10^-8 ±0.00109 .10^-8
A₂ = 0.00199 .10^-8 ±0.00001 .10^-8
A₃ = -0.00276 .10^-8 ±0.00147 .10^-8

Formulæ for magnitudes

Total magnitude :
m₁ = H₁ + 5log(Δ) + 10 log(r) avec H₁ = 14.46± 0.05 calculé à l'aide de 137 observation(s).
Nuclear magnitude :
m₂ = H₂ + 5log(Δ) + 5 log(r) avec H₂ = 15.83±0.03 calculé à l'aide de 152 observation(s).

Elements for the next transit through perihelion

Epoch :2015 January 31 at 0h TT, julian day 2457053.5 TT.

T =2015 January 30.52701 TT.
q :1.2392121 ua	(J2000)	P	Q
n : 0.15590751°/jour	ω : 172.5062731°	-0.06134049	+0.92321894
a : 3.4189390 ua	Ω : 93.4161330°	-0.93433917	+0.08056687
e : 0.6375448	i : 22.3350614°	-0.35106645	-0.37573365
P =6.32 years

Elements for the previous transit(s) through perihelion

Epoch :2002 May 15 at 0h TT, julian day 2452409.5 TT.

T =2002 May 15.72007 TT.
q :1.2581452 ua	(J2000)	P	Q
n : 0.15459138°/jour	ω : 172.2926033°	-0.06423800	+0.92335940
a : 3.4383167 ua	Ω : 93.4500218°	-0.93462735	+0.07728158
e : 0.6340811	i : 22.2848732°	-0.34977877	-0.37607841
P =6.38 years

Epoch :1996 January 2 at 0h TT, julian day 2450084.5 TT.

T =1996 January 2.45249 TT.
q :1.2558874 ua	(J2000)	P	Q
n : 0.15478997°/jour	ω : 172.3136126°	-0.06427288	+0.92324329
a : 3.4353752 ua	Ω : 93.4277062°	-0.93458955	+0.07739431
e : 0.6344250	i : 22.3015205°	-0.34987338	-0.37634021
P =6.37 years

Epoch :1989 August 19 at 0h TT, julian day 2447757.5 TT.

T =1989 August 19.89804 TT.
q :1.2609598 ua	(J2000)	P	Q
n : 0.15443301°/jour	ω : 172.3385384°	-0.06383008	+0.92346823
a : 3.4406668 ua	Ω : 93.4315554°	-0.93453605	+0.07768185
e : 0.6335130	i : 22.2722279°	-0.35009725	-0.37572857
P =6.38 years

Epoch :1983 April 7 at 0h TT, julian day 2445431.5 TT.

T =1983 April 7.50954 TT.
q :1.2539852 ua	(J2000)	P	Q
n : 0.15495451°/jour	ω : 172.3369936°	-0.06383894	+0.92323688
a : 3.4329428 ua	Ω : 93.4307101°	-0.93456548	+0.07785370
e : 0.6347200	i : 22.3071158°	-0.35001708	-0.37626118
P =6.36 years

Epoch :1976 November 28 at 0h TT, julian day 2443110.5 TT.

T =1976 November 28.74536 TT.
q :1.2542029 ua	(J2000)	P	Q
n : 0.15491929°/jour	ω : 172.3789415°	-0.06324192	+0.92336905
a : 3.4334631 ua	Ω : 93.4268723°	-0.93449320	+0.07839786
e : 0.6347120	i : 22.2932473°	-0.35031831	-0.37582360
P =6.36 years

Epoch :1970 July 21 at 0h TT, julian day 2440788.5 TT.

T =1970 July 21.03228 TT.
q :1.2473581 ua	(J2000)	P	Q
n : 0.15536456°/jour	ω : 172.2625287°	-0.06437717	+0.92310896
a : 3.4268998 ua	Ω : 93.4679990°	-0.93471642	+0.07727789
e : 0.6360098	i : 22.3217222°	-0.34951508	-0.37669349
P =6.34 years

Epoch :1964 March 24 at 0h TT, julian day 2438478.5 TT.

T =1964 March 24.55040 TT.
q :1.2301226 ua	(J2000)	P	Q
n : 0.15643800°/jour	ω : 172.0467010°	-0.06623714	+0.92297052
a : 3.4112055 ua	Ω : 93.5607967°	-0.93510334	+0.07514801
e : 0.6393877	i : 22.3250958°	-0.34812984	-0.37746285
P =6.30 years

Epoch :1957 December 5 at 0h TT, julian day 2436177.5 TT.

T =1957 December 4.70034 TT.
q :1.2262956 ua	(J2000)	P	Q
n : 0.15668312°/jour	ω : 171.9588170°	-0.06685037	+0.92281944
a : 3.4076468 ua	Ω : 93.6060197°	-0.93528083	+0.07448539
e : 0.6401342	i : 22.3423985°	-0.34753532	-0.37796324
P =6.29 years

Epoch :1951 September 8 at 0h TT, julian day 2433897.5 TT.

T =1951 September 8.61223 TT.
q :1.1604556 ua	(J2000)	P	Q
n : 0.16007510°/jour	ω : 170.2204865°	-0.06984694	+0.92715357
a : 3.3593367 ua	Ω : 95.0860446°	-0.93839742	+0.06412228
e : 0.6545581	i : 21.6890245°	-0.33842532	-0.36915389
P =6.16 years

Contact

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

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