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Note number : 0019 P/Tempel 2 : 10P

Introduction

The following improved orbital elements, are from 2987 observations 1990 April 29 to 2015 March 31, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.42 arc second.

Elements

Orbital elements given with respect to the mean ecliptic and equinox of J2000.
Epoch : 2015 November 14 at 0h TT, julian day 2457340.5.

Perihelion passage (T) 2015 November 14.25643 TT ±0.00000 TT
Argument of perihelion (ω) 195.5464373° ±0.0000354°
>Longitude of the node (Ω) 117.8052334° ۪.0000365°
Inclinaison (i) 12.0288786° ±0.0000072°
Perihelion distance (q) 1.4176480 ua ±0.0000003 ua
Eccentricity (e) 0.5373612 ±0.0000008
Semimajor axis (a) 3.0642657 ua ±0.0000061 ua
Mean motion (n) 0.18374454°/jour ±0.00000055°/jour
Period (P) 5.364 years ±0.0000161 (0.0059 day)

Non-gravitational parameters :

A1 = 0.03032 .10-8 ±0.00062 .10-8
A2 = 0.00070 .10-8 ±0.00002 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 11.89± 0.03 calculated using 579 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.94±0.01 calculated using 1480 observation(s).

Elements for the next transit through perihelion

Epoch :2021 March 24 at 0h TT, julian day 2459297.5 TT.

T =2021 March 24.27641 TT.
q :1.4124806 ua (J2000) P Q
n : 0.18398140°/jour ω : 195.5056167° +0.68081104 +0.70884231
a : 3.0616351 ua Ω : 117.8096479° -0.64788681 +0.70028293
e : 0.5386516 i : 12.0396017° -0.34167090 +0.08453630
P =5.36 years

Elements for the previous transit(s) through perihelion

Epoch :2010 July 4 at 0h TT, julian day 2455381.5 TT.

T =2010 July 4.90492 TT.
q :1.4226962 ua (J2000) P Q
n : 0.18339125°/jour ω : 195.6602538° +0.68294062 +0.70686535
a : 3.0681999 ua Ω : 117.8256994° -0.64584313 +0.70212437
e : 0.5363092 i : 12.0224694° -0.34128985 +0.08580641
P =5.37 years

Epoch :2005 February 15 at 0h TT, julian day 2453416.5 TT.

T =2005 February 15.03758 TT.
q :1.4268589 ua (J2000) P Q
n : 0.18312895°/jour ω : 195.5584680° +0.68198463 +0.70781674
a : 3.0711289 ua Ω : 117.8490085° -0.64684163 +0.70121615
e : 0.5353960 i : 12.0177048° -0.34131053 +0.08538953
P =5.38 years

Epoch :1999 September 8 at 0h TT, julian day 2451429.5 TT.

T =1999 September 8.41989 TT.
q :1.4816762 ua (J2000) P Q
n : 0.18013749°/jour ω : 195.0219336° +0.68000467 +0.71003856
a : 3.1050360 ua Ω : 118.2118229° -0.64949796 +0.69905865
e : 0.5228151 i : 11.9767363° -0.34021471 +0.08463000
P =5.47 years

Epoch :1994 March 16 at 0h TT, julian day 2449427.5 TT.

T =1994 March 16.81254 TT.
q :1.4835332 ua (J2000) P Q
n : 0.18001012°/jour ω : 194.8821259° +0.67874751 +0.71126251
a : 3.1065005 ua Ω : 118.2490648° -0.65079914 +0.69788860
e : 0.5224423 i : 11.9752640° -0.34023859 +0.08400680
P =5.48 years

Epoch :1988 September 16 at 0h TT, julian day 2447420.5 TT.

T =1988 September 16.73379 TT.
q :1.3834222 ua (J2000) P Q
n : 0.18624571°/jour ω : 191.0633846° +0.65025944 +0.73639636
a : 3.0367698 ua Ω : 119.7927426° -0.67956399 +0.67371466
e : 0.5444429 i : 12.4281679° -0.33964017 +0.06187861
P =5.29 years

Contact

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

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