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Note number : 0019 P/Tempel 2 : 10P

Introduction

The following improved orbital elements, are from 3428 observations 1990 April 29 to 2015 May 28, including full planetary and non-gravitational effect of type II, and relativity effect of the sun.

The mean residual is 0.40 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 14.25627 TT ±0.00000 TT
Argument of perihelion (ω) 195.5463586° ±0.0000254°
>Longitude of the node (Ω) 117.8052829° ۪.0000257°
Inclinaison (i) 12.0288985° ±0.0000047°
Perihelion distance (q) 1.4176481 ua ±0.0000002 ua
Eccentricity (e) 0.5373612 ±0.0000005
Semimajor axis (a) 3.0642652 ua ±0.0000038 ua
Mean motion (n) 0.18374458°/jour ±0.00000034°/jour
Period (P) 5.364 years ±0.0000101 (0.0037 day)

Non-gravitational parameters :

A1 = 0.03271 .10-8 ±0.00059 .10-8
A2 = 0.00063 .10-8 ±0.00002 .10-8

Formulæ for magnitudes

Total magnitude :
m1 = H1 + 5log(Δ) + 10 log(r) with H1 = 12.09± 0.03 calculated using 694 observation(s).
Nuclear magnitude :
m2 = H2 + 5log(Δ) + 5 log(r) with H2 = 14.07±0.01 calculated using 1854 observation(s).

Elements for the next transit through perihelion

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

T =2021 March 24.27604 TT.
q :1.4124806 ua (J2000) P Q
n : 0.18398145°/jour ω : 195.5055251° +0.68081052 +0.70884276
a : 3.0616346 ua Ω : 117.8096973° -0.64788737 +0.70028256
e : 0.5386515 i : 12.0396217° -0.34167089 +0.08453569
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 4.90488 TT.
q :1.4226962 ua (J2000) P Q
n : 0.18339128°/jour ω : 195.6601882° +0.68294042 +0.70686549
a : 3.0681995 ua Ω : 117.8257488° -0.64584337 +0.70212429
e : 0.5363091 i : 12.0224893° -0.34128981 +0.08580595
P =5.37 years

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

T =2005 February 15.03760 TT.
q :1.4268590 ua (J2000) P Q
n : 0.18312898°/jour ω : 195.5584152° +0.68198459 +0.70781673
a : 3.0711286 ua Ω : 117.8490579° -0.64684170 +0.70121621
e : 0.5353959 i : 12.0177247° -0.34131047 +0.08538914
P =5.38 years

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

T =1999 September 8.41991 TT.
q :1.4816762 ua (J2000) P Q
n : 0.18013751°/jour ω : 195.0218940° +0.68000479 +0.71003840
a : 3.1050358 ua Ω : 118.2118719° -0.64949788 +0.69905886
e : 0.5228151 i : 11.9767559° -0.34021462 +0.08462970
P =5.47 years

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

T =1994 March 16.81251 TT.
q :1.4835333 ua (J2000) P Q
n : 0.18001014°/jour ω : 194.8820989° +0.67874778 +0.71126219
a : 3.1065004 ua Ω : 118.2491138° -0.65079891 +0.69788895
e : 0.5224423 i : 11.9752836° -0.34023848 +0.08400657
P =5.48 years

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

T =1988 September 16.73347 TT.
q :1.3834223 ua (J2000) P Q
n : 0.18624572°/jour ω : 191.0633570° +0.65025978 +0.73639600
a : 3.0367697 ua Ω : 119.7927962° -0.67956374 +0.67371506
e : 0.5444428 i : 12.4281886° -0.33964002 +0.06187839
P =5.29 years

Contact

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

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