Nongravitational nominal solution


   Observational arc:        1997 05 05 - 1999 10 09  
   Number of observations:   1446  
   RMS:                      0.53 arcsec (2863 residuals used, 1.0% rejected residuals ) 

Heliocentric osculating orbit

  Epoch        Perihelion time   q             e            ω              Ω            i      
  1998 03 08   19980310.442478   3.05109435    1.00056658   122.674220     148.844627   91.273390     
                    ± 0.000111   0.00000118    0.00000179     0.000028       0.000006    0.000006      

  NG parameters:   
   A1 = (292.74  ± 6.9)×10-8 AU/day2  
   A2 = (-50.389 ± 6.4)×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      
  1695 12 01   19980311.421737   3.05072071    0.99986383    122.722824   149.494233    91.236407     
                    ± 0.000238   0.00000158    0.00000270      0.000065     0.000007     0.000005          
   1/aori =  ( +44.64 ± 0.88)×10-6 AU-1  

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

  Epoch        Perihelion time   q             e             ω             Ω            i      
  2300 02 13   19980311.767612   3.03930973    0.99995526    122.510722   149.502632    91.247360     
                    ± 0.000278   0.00000167    0.00000277      0.000075     0.000010     0.000006      
   1/afut = (+14.72 ± 0.91)×10-6 AU-1  

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

Gravitational orbit (1328 obs.) with 0 < 1/aori < 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 19 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/afut
[10-8 AU/day2]
RMSGR

[arcsec]
NG
(1/a)ori
[10-8 AU/day2]
NG
(1/a)osc
[10-8 AU/day2]

epoch [TT]
NG
1/afut
[10-8 AU/day2]
RMSNG

[arcsec]
NG parameters
A1
A2
A3
[10-8 AU/day2]
tau shift [day]
19 C/1997 J2 Meunier-Dupouy
weighting
+38.83 ± 0.57 -201.82 ± 0.56
1998 03 08
-2.72 ± 0.57 0.67 +44.64 ± 0.88 -185.70 ± 0.59
1998 03 08
+14.72 ± 0.91 0.53 292.74 ± 6.92
-50.39 ± 6.35


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 orbits, at previous perihelion :


1997j2amz.png
Past, gravitational, asynchronous.
1997j2amsz.png
Past, gravitational, synchronous.


1997j2nmz.png
Past, nongravitational, asynchronous.
1997j2nmsz.png
Past, nongravitational, synchronous.


Future orbits, at next perihelion for the returning VCs :

1997j2apz.png
Future, gravitational, all VCs at the escape border.


1997j2npz.png
Future, nongravitational, asynchronous.
1997j2npsz.png
Future, nongravitational, synchronous.