Nongravitational nominal solution

   Obs. arc:      1978 04 28 - 1979 12 09   
   Number of obs: 287  
   RMS:           1.00 arc second, (565 residuals used, 4.9% rejected residuals)  

Heliocentric osculating orbit

  Epoch        Perihelion time   q             e            ω              Ω            i      
  1978 11 28   19781111.408775   1.13650660    1.00079425   231.401425     349.344859   43.761723        
                     ±0.000236   0.00000288    0.00000972     0.000104       0.000060    0.000084   

  NG parameters:   
   A1= (1.2917 ± 0.1982)  10-8 AU/day2  
   A2=(0.41506 ± 0.12476) 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      
  1679 08 07   19781110.596515   1.12973415    0.99990900   231.440876     350.248621   43.766722        
                     ±0.000480   0.00000614    0.00001212     0.000543       0.000065    0.000086   
   1/aori =   (+80.55 ± 10.73) 10-6 AU-1  

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

  Epoch        Perihelion time   q             e            ω              Ω            i      
  2266 07 01   19781110.554368   1.14083841    1.00116958   231.488113     350.041308   43.684111        
                     ±0.000446   0.00000560    0.00000931     0.000411       0.000058    0.000085   
   1/afut = (-1025.19 ± 8.15) 10-6 AU-1  

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

Gravitational orbit (238 obs.) with 0 < 1/aori < 10-4 AU-1 - original barycentric orbit from the Oort spike.


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 9 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]
9 C/1978 H1 Meier
weighting
+23.79 ± 2.42 -748.17 ± 2.40
1978 11 28
-1028.68 ± 2.42 1.04 +80.55 ± 10.73 -698.85 ± 8.55
1978 11 28
-1025.19 ± 8.15 1.00 1.292 ± 0.198
0.4151 ± 0.1248


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 :

1978h1amz.png
Past, gravitational, asynchronous.
1978h1amgz.png
Past, gravitational, asynchronous,
the escape border extended up to 130 000 AU.


1978h1amsz.png
Past, gravitational, synchronous.
1978h1amsgz.png
Past, gravitational, synchronous,
the escape border extended up to 130 000 AU.


1978h1nmz.png
Past, nongravitational, asynchronous.
1978h1nmsz.png
Past, nongravitational, synchronous.


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

1978h1apz.png
Future, gravitational, asynchronous.
1978h1apsz.png
Future, gravitational, synchronous.


1978h1npz.png
Future, nongravitational, asynchronous.
1978h1npsz.png
Future, nongravitational, synchronous.