Nongravitational nominal solution


   Observational arc:        1885 12 02 - 1886 07 20 
   Number of observations:   228 
   RMS:                      3.58 arcsec (390 residuals used, 14% rejected residuals )

Heliocentric osculating orbit

  Epoch        Perihelion time   q             e            ω              Ω            i    
  1886 04 04   18860406.454383   0.64236680    1.00027315   126.588371     37.963059    82.628566       
                    ± 0.000285   0.00000206    0.00002319     0.000120      0.000094     0.000459        

  NG parameters:  
   A1 = ( 2.3366  ± 0.2953 )×10-8 AU/day2 
   A2 = (-0.28794 ± 0.16058)×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     
  1588 01 17   18860405.846922   0.63999379    0.99996093    126.681400    38.551189    82.761269       
                    ± 0.000595   0.00000574    0.00001099      0.000644     0.000093     0.000459       
   1/aori =  (61.04 ± 17.17)×10-6 AU-1 

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

  Epoch        Perihelion time   q             e             ω             Ω            i     
  2182 08 10   18860407.057135   0.64058887    1.00006625    126.522866    38.834611    82.612360       
                    ± 0.000133   0.00000783    0.00002647      0.001336     0.000094     0.000459       
   1/afut = (-103.42 ± 41.33)×10-6 AU-1 

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

Nongravitational orbit (142 obs.) with A1=2.6 10-8 AU/day2, A2=-0.2 10-8 AU/day2


The same comet in some other internet sources:


More details

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


Gravitational osculating swarm.

Nongravitational osculating swarm,
randomly selected both parameters: A1 and A2.


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

Comet number 1 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]
1 C/1885 X1 Fabry
weighting
-2.73 ± 11.28 -692.38 ± 11.51
1886 04 04
-256.73 ± 11.28 3.92 +61.04 ± 17.17 -425.22 ± 36.10
1886 04 04
-103.42 ± 41.33 3.58 2.3366 ± 0.2953
-0.2879 ± 0.1606


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 for the returning VCs :

1885x1amz.png
Past, gravitational, asynchronous.
1885x1amsz.png
Past, gravitational, synchronous.


1885x1nmz.png
Past, nongrawitational,asynchronous.
1885x1nmsz.png
Past, nongravitational, synchronous.


Past orbits with A2 fixed:

1885x1nmz.png
Past, nongravitational, asynchronous,
A2 fixed.
1885x1nmez.png
Past, nongravitational, asynchronous,
A2 fixed and the three most
dispersed VCs omitted!


Future orbits, at next perihelion for the returning VCs:

1885x1apz.png
Future, gravitational, asynchronous.
1885x1apsz.png
Future, gravitational, synchronous.


1885x1npz.png
Future, nongravitational, asynchronous.
1885x1npsz.png
Future, nongravitational, synchronous.