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

Note number : 0040 P/Du Toit-Neujmin-Delporte : 57P

Introduction

The following improved orbital elements, are from 649 observations 1995 May 23 to 2015 May 24, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.54 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2015 May 22 at 0h TT, julian day 2457164.5.

Perihelion passage (T) 2015 May 22.27305 TT ±0.00000 TT
Argument of perihelion (ω) 115.2191648° ±0.0004655°
>Longitude of the node (Ω) 188.8022340° ۪.0004439°
Inclinaison (i) 2.8481002° ±0.0000167°
Perihelion distance (q) 1.7288425 ua ±0.0000007 ua
Eccentricity (e) 0.4992755 ±0.0000020
Semimajor axis (a) 3.4526820 ua ±0.0000153 ua
Mean motion (n) 0.15362758°/jour ±0.00000102°/jour
Period (P) 6.416 years ±0.0000425 (0.0155 day)

Non-gravitational parameters :

A1 = 1.36555 .10-8 ±0.01429 .10-8
A2 = 0.00626 .10-8 ±0.00031 .10-8
A3 = -0.13544 .10-8 ±0.00629 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 13.89± 0.05 calculated using 252 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 14.54±0.02 calculated using 72 observation(s).

Elements for the next transit through perihelion

Epoch :2021 October 17 at 0h TT, julian day 2459504.5 TT.

T =2021 October 17.43029 TT.
q :1.7200998 ua (J2000) P Q
n : 0.15400538°/jour ω : 115.2532488° +0.55939987 +0.82886322
a : 3.4470331 ua Ω : 188.7728585° -0.77727230 +0.52135784
e : 0.5009912 i : 2.8509963° -0.28795757 +0.20290827
P =6.40 years

Elements for the previous transit(s) through perihelion

Epoch :2008 December 25 at 0h TT, julian day 2454825.5 TT.

T =2008 December 25.95831 TT.
q :1.7237963 ua (J2000) P Q
n : 0.15384710°/jour ω : 115.3032712° +0.56086265 +0.82787378
a : 3.4493970 ua Ω : 188.8240618° -0.77634119 +0.52270764
e : 0.5002615 i : 2.8481040° -0.28762378 +0.20347417
P =6.41 years

Epoch :2002 July 31 at 0h TT, julian day 2452486.5 TT.

T =2002 July 31.17996 TT.
q :1.7294685 ua (J2000) P Q
n : 0.15362031°/jour ω : 115.2465784° +0.56152149 +0.82742632
a : 3.4527909 ua Ω : 188.9264816° -0.77591906 +0.52328799
e : 0.4991100 i : 2.8446439° -0.28747734 +0.20380228
P =6.42 years

Epoch :1996 March 5 at 0h TT, julian day 2450147.5 TT.

T =1996 March 5.72902 TT.
q :1.7196494 ua (J2000) P Q
n : 0.15415881°/jour ω : 115.2160204° +0.56197762 +0.82711607
a : 3.4447456 ua Ω : 188.9887291° -0.77564470 +0.52370184
e : 0.5007906 i : 2.8457896° -0.28732640 +0.20399852
P =6.39 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..