Presentation list by number list by name list by date ASCII files

Note number : 0011 P/Brooks 2 : 16P

Introduction

The following improved orbital elements, are from 413 observations 2000 July 27 to 2014 October 30, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.59 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2014 June 7 at 0h TT, julian day 2456815.5.

Perihelion passage (T) 2014 June 7.55951 TT ±0.00000 TT
Argument of perihelion (ω) 219.6486988° ±0.0003426°
>Longitude of the node (Ω) 159.3080996° ۪.0003189°
Inclinaison (i) 4.2580602° ±0.0000228°
Perihelion distance (q) 1.4663417 ua ±0.0000006 ua
Eccentricity (e) 0.5627260 ±0.0000019
Semimajor axis (a) 3.3533706 ua ±0.0000157 ua
Mean motion (n) 0.16050248°/jour ±0.00000112°/jour
Period (P) 6.141 years ±0.0000430 (0.0157 day)

Non-gravitational parameters :

A1 = 1.02871 .10-8 ±0.00915 .10-8
A2 = -0.22894 .10-8 ±0.00063 .10-8
A3 = 0.11017 .10-8 ±0.00596 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 13.35± 0.05 calculated using 184 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 14.49±0.05 calculated using 111 observation(s).

Elements for the next transit through perihelion

Epoch :2021 April 18 at 0h TT, julian day 2459322.5 TT.

T =2021 April 18.17430 TT.
q :1.8780886 ua (J2000) P Q
n : 0.14102120°/jour ω : 245.1730563° +0.91242734 -0.40777685
a : 3.6554971 ua Ω : 138.8682652° +0.39187921 +0.84626651
e : 0.4862289 i : 3.0116710° +0.11792809 +0.34285718
P =6.99 years

Elements for the previous transit(s) through perihelion

Epoch :2008 April 12 at 0h TT, julian day 2454568.5 TT.

T =2008 April 12.57695 TT.
q :1.4665966 ua (J2000) P Q
n : 0.16049540°/jour ω : 219.4689954° +0.94578898 -0.32372694
a : 3.3534693 ua Ω : 159.3740222° +0.31359199 +0.88928112
e : 0.5626629 i : 4.2579785° +0.08451785 +0.32307888
P =6.14 years

Epoch :2001 July 19 at 0h TT, julian day 2452109.5 TT.

T =2001 July 19.83367 TT.
q :1.8349007 ua (J2000) P Q
n : 0.14360942°/jour ω : 198.1062342° +0.96575344 -0.25940936
a : 3.6114430 ua Ω : 176.9145662° +0.24840170 +0.91860769
e : 0.4919204 i : 5.5481680° +0.07494592 +0.29810517
P =6.86 years

Contact

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

Presentation list by number list by name list by date ASCII files
Caution : This Website was created with the Ministère de l'Education Nationale, the CNRS and the CNES support. Any use of the data published on this website requires the IMCCE agreement..