Comet C/2002 E2 Snyder-Murakami

Nongravitational nominal solution

   Observational arc:        2002 03 08 - 2003 01 08  
   Number of observations:    941  
   RMS:                      0.57 arcsec (1863 residuals used, 5.7% rejected residuals )

Heliocentric osculating orbit

  Epoch        Perihelion time   q             e            ω              Ω            i      
  2002 02 15   20020221.798122   1.46645893    1.00076303     9.038271    244.583534    92.545707              
                    ± 0.000269   0.00000133    0.00001166     0.000227      0.000030     0.000012         

  NG parameters:   
   A₁ = (2.7802 ± 0.2322 )×10^-8 AU/day²  
   A₂ = (0.87888± 0.19405)×10^-8 AU/day²  
   A₃ = 0 (assumed)

Barycentric nominal original orbit (at 250 AU from the Sun)

  Epoch        Perihelion time   q             e             ω             Ω            i      
  1702 02 28   20020221.797582   1.47022961    0.99986829      9.049568   245.353318    92.549022              
                    ± 0.000761   0.00000456    0.00001822      0.000626     0.000021     0.000010         
   1/a_ori =  (+89.59 ± 12.39)×10^-6 AU^-1

Barycentric nominal future orbit (at 250 AU from the Sun)

  Epoch        Perihelion time   q             e             ω             Ω            i      
  2296 04 14   20020222.046158   1.46932103    1.00064899      9.076440   245.277909    92.490846              
                    ± 0.000226   0.00000117    0.00000410      0.000082     0.000025     0.000009         
   1/a_fut = (-441.69 ± 2.79)×10^-6 AU^-1

In the 17th edition of the Catalogue of Cometary orbits (2008):

Gravitational orbit (661 obs., shorter arc) with 1/a_ori > 10^-4 AU^-1.

The same comet in some other internet sources:

More details

Starting swarms of VCs...(heliocentric, osculating orbits)

Gravitational osculating swarm.

Nongravitational osculating swarm.

Original and future orbit at the 250 AU from the Sun.

Comet number 23 in the Table: Nongravitational Oort spike comets (26 objects)

	Name	GR (1/a)_ori [10^-8 AU/day²]	GR (1/a)_osc [10^-8 AU/day²] epoch [TT]	GR 1/a_fut [10^-8 AU/day²]	RMS_GR [arcsec]	NG (1/a)_ori [10^-8 AU/day²]	NG (1/a)_osc [10^-8 AU/day²] epoch [TT]	NG 1/a_fut [10^-8 AU/day²]	RMS_NG [arcsec]	NG parameters A₁ A₂ A₃ [10^-8 AU/day²] tau shift [day]
23	C/2002 E2 Snyder-Murakami weighting	+42.95 ± 2.31	-566.91 ± 2.26 2002 02 15	-425.73 ± 2.31	0.61	+89.59 ± 12.39	-520.32 ± 7.95 2002 02 15	-441.69 ± 2.79	0.57	2.7802 ± 0.2322 0.8789 ± 0.1940

Note: in the following plots black denotes returning clones while red denotes escaping ones.The nominal solution is located at the center of the green circle. Each plot have a header where date of calculation and some other parameters are coded. Also numbers of returning (B=shown+omitted), escaping (C=shown+omitted) and all (T=shown+omitted) Vcs are shown.

Past orbit, at previous perihelion for the returning VCs :

Past, gravitational, asynchronous.

Past, gravitational, synchronous.

Past, nongravitational, asynchronous.

Past, nongravitational, synchronous.

Future orbits, at the escape border (no returning VCs) :

Future, gravitational.

Future, nongravitational.

≡