Nongravitational nominal solution


   Observational arc:        1990 05 21 - 1992 04 01  
   Number of observations:   678  
   RMS:                      1.05 arcsec (1323 residuals used, 2.4% rejected residuals ) 

Heliocentric osculating orbit

  Epoch        Perihelion time   q             e            ω              Ω            i      
  1990 11 05   19901024.684002   0.93870115    1.00040983   242.665517    139.364408   131.582216        
                    ± 0.000055   0.00000098    0.00000441     0.000027      0.000026     0.000062         

  NG parameters:   
   A1 = (3.3077  ± 0.0896 )×10-8 AU/day2  
   A2 = (0.09735 ± 0.04212)×10-8 AU/day2  
   A3 = (0.34666 ± 0.01289)×10-8 AU/day2  

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

  Epoch        Perihelion time   q             e             ω             Ω            i      
  1691 07 15   19901024.552902   0.93928719    0.99990165    242.649942   140.000411   131.568927              
                    ± 0.000161   0.00000302    0.00000537      0.000320     0.000024     0.000062         
   1/aori =  (+104.71 ± 5.72)×10-6 AU-1  

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

  Epoch        Perihelion time   q             e             ω             Ω            i      
  2280 07 07   19901025.271800   0.93079363    1.00073287    242.438614   140.018152   131.500579              
                    ± 0.000144   0.00000185    0.00000268      0.000124     0.000043     0.000062         
   1/afut = (-787.37 ± 2.88)×10-6 AU-1  

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

Nongravitational orbit (314 obs.) with A1 = 3.0 ×10-8 AU/day2 and 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.


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

Comet number 13 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]
13 C/1990 K1 Levy
weighting
+17.59 ± 1.70 -622.39 ± 1.72
1990 11 05
-857.12 ± 1.71 1.71 +104.71 ± 5.72 -436.59 ± 4.70
1990 11 05
-787.37 ± 2.88 1.05 3.3077 ± 0.0896
0.09735 ± 0.04212
0.34667 ± 0.01289


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 :

1990k1amz.png
Past, gravitational, asynchronous.
1990k1amsz.png
Past, gravitational, synchronous.


1990k1amgz.png
Past, gravitational, asynchronous,
the escape border enlarged up to 190 000 AU,
the slowest VC reached previous perihelion
after 27 Myrs.
1990k1amsgz.png
Past, gravitational, synchronous,
the escape border enlarged up to 190 000 AU,
all VCs stopped at 13 Myrs when
the nominal VC reached previous perihelion.


1990k1nmz.png
Past, nongravitational, asynchronous.
1990k1nmsz.png
Past, nongravitational, synchronous.


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

1990k1apsz.png
Future, gravitational.
1990k1npsz.png
Future, nongravitational.