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Note number : 0125 P/Daniel : 33P

Introduction

The following improved orbital elements, are from 329 observations 1964 February 6 to 2009 April 29, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.81 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2008 July 20 at 0h TT, julian day 2454667.5.

Perihelion passage (T) 2008 July 20.35176 TT ±0.00000 TT
Argument of perihelion (ω) 18.9770846° ±0.0000853°
>Longitude of the node (Ω) 66.5716797° ۪.0001105°
Inclinaison (i) 22.3755811° ±0.0000357°
Perihelion distance (q) 2.1697269 ua ±0.0000010 ua
Eccentricity (e) 0.4619010 ±0.0000015
Semimajor axis (a) 4.0322078 ua ±0.0000127 ua
Mean motion (n) 0.12172778°/jour ±0.00000058°/jour
Period (P) 8.097 years ±0.0000383 (0.0140 day)

Non-gravitational parameters :

A1 = 0.43452 .10-8 ±0.01857 .10-8
A2 = 0.07073 .10-8 ±0.00021 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) avec H1 = 11.66± 0.14 calculé à l'aide de 88 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) avec H2 = 13.82±0.08 calculé à l'aide de 156 observation(s).

Elements for the next transit through perihelion

Epoch :2016 August 22 at 0h TT, julian day 2457622.5 TT.

T =2016 August 22.47065 TT.
q :2.1602170 ua (J2000) P Q
n : 0.12214471°/jour ω : 19.0700892° +0.09999949 -0.93163891
a : 4.0230270 ua Ω : 66.4905209° +0.85619810 -0.09829694
e : 0.4630369 i : 22.3943163° +0.50687762 +0.34983804
P =8.07 years

Elements for the previous transit(s) through perihelion

Epoch :2000 June 23 at 0h TT, julian day 2451718.5 TT.

T =2000 June 23.46598 TT.
q :2.1572374 ua (J2000) P Q
n : 0.12220538°/jour ω : 18.9879832° +0.09978220 -0.93148280
a : 4.0216954 ua Ω : 66.5824398° +0.85644045 -0.09857359
e : 0.4636000 i : 22.4101681° +0.50651087 +0.35017573
P =8.07 years

Epoch :1992 September 1 at 0h TT, julian day 2448866.5 TT.

T =1992 September 1.67160 TT.
q :1.6494611 ua (J2000) P Q
n : 0.13952775°/jour ω : 11.0069201° +0.18350058 -0.92895539
a : 3.6815355 ua Ω : 69.0539881° +0.87373903 +0.00425876
e : 0.5519638 i : 20.1366720° +0.45045271 +0.37016718
P =7.06 years

Epoch :1985 August 4 at 0h TT, julian day 2446281.5 TT.

T =1985 August 4.24015 TT.
q :1.6511218 ua (J2000) P Q
n : 0.13939282°/jour ω : 10.8388468° +0.18481923 -0.92858832
a : 3.6839109 ua Ω : 69.1366382° +0.87395500 +0.00552341
e : 0.5518019 i : 20.1450146° +0.44949361 +0.37107038
P =7.07 years

Epoch :1978 July 8 at 0h TT, julian day 2443697.5 TT.

T =1978 July 8.40395 TT.
q :1.6616102 ua (J2000) P Q
n : 0.13892504°/jour ω : 10.8406435° +0.18403624 -0.92872643
a : 3.6921758 ua Ω : 69.1805053° +0.87408926 +0.00486740
e : 0.5499645 i : 20.1421647° +0.44955381 +0.37073377
P =7.09 years

Epoch :1971 May 31 at 0h TT, julian day 2441102.5 TT.

T =1971 May 31.69706 TT.
q :1.6703301 ua (J2000) P Q
n : 0.13843106°/jour ω : 10.8369303° +0.18423204 -0.92882795
a : 3.7009539 ua Ω : 69.1710328° +0.87410107 +0.00527422
e : 0.5486758 i : 20.1170287° +0.44945063 +0.37047377
P =7.12 years

Epoch :1964 April 21 at 0h TT, julian day 2438506.5 TT.

T =1964 April 21.21023 TT.
q :1.6614802 ua (J2000) P Q
n : 0.13893031°/jour ω : 10.7880945° +0.18455649 -0.92858596
a : 3.6920823 ua Ω : 69.2001331° +0.87413571 +0.00534164
e : 0.5499883 i : 20.1464382° +0.44925011 +0.37107893
P =7.09 years

Contact

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

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