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Note number : 0019 P/Tempel 2 : 10P

Introduction

The following improved orbital elements, are from 2867 observations 1990 April 29 to 2014 March 29, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.44 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 14.25672 TT ±0.00000 TT
Argument of perihelion (ω) 195.5463796° ±0.0000593°
>Longitude of the node (Ω) 117.8052576° ۪.0000619°
Inclinaison (i) 12.0288724° ±0.0000132°
Perihelion distance (q) 1.4176478 ua ±0.0000006 ua
Eccentricity (e) 0.5373614 ±0.0000015
Semimajor axis (a) 3.0642658 ua ±0.0000113 ua
Mean motion (n) 0.18374453°/jour ±0.00000102°/jour
Period (P) 5.364 years ±0.0000297 (0.0109 day)

Non-gravitational parameters :

A1 = 0.03323 .10-8 ±0.00075 .10-8
A2 = 0.00094 .10-8 ±0.00004 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 11.86± 0.03 calculated using 521 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 13.93±0.01 calculated using 1446 observation(s).

Elements for the next transit through perihelion

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

T =2021 March 24.27719 TT.
q :1.4124803 ua (J2000) P Q
n : 0.18398138°/jour ω : 195.5055436° +0.68081045 +0.70884292
a : 3.0616354 ua Ω : 117.8096721° -0.64788745 +0.70028235
e : 0.5386517 i : 12.0395956° -0.34167087 +0.08453608
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 4.90490 TT.
q :1.4226959 ua (J2000) P Q
n : 0.18339125°/jour ω : 195.6602119° +0.68294041 +0.70686558
a : 3.0681998 ua Ω : 117.8257236° -0.64584339 +0.70212414
e : 0.5363092 i : 12.0224632° -0.34128977 +0.08580638
P =5.37 years

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

T =2005 February 15.03746 TT.
q :1.4268586 ua (J2000) P Q
n : 0.18312898°/jour ω : 195.5584418° +0.68198462 +0.70781679
a : 3.0711286 ua Ω : 117.8490327° -0.64684169 +0.70121609
e : 0.5353960 i : 12.0176986° -0.34131043 +0.08538959
P =5.38 years

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

T =1999 September 8.41989 TT.
q :1.4816758 ua (J2000) P Q
n : 0.18013754°/jour ω : 195.0219239° +0.68000486 +0.71003842
a : 3.1050355 ua Ω : 118.2118465° -0.64949783 +0.69905878
e : 0.5228152 i : 11.9767300° -0.34021458 +0.08463016
P =5.47 years

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

T =1994 March 16.81285 TT.
q :1.4835328 ua (J2000) P Q
n : 0.18001018°/jour ω : 194.8821317° +0.67874789 +0.71126218
a : 3.1064998 ua Ω : 118.2490884° -0.65079882 +0.69788890
e : 0.5224423 i : 11.9752577° -0.34023844 +0.08400705
P =5.48 years

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

T =1988 September 16.73461 TT.
q :1.3834220 ua (J2000) P Q
n : 0.18624578°/jour ω : 191.0634133° +0.65026009 +0.73639582
a : 3.0367690 ua Ω : 119.7927638° -0.67956344 +0.67371522
e : 0.5444428 i : 12.4281613° -0.33964002 +0.06187900
P =5.29 years

Contact

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

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