Comet C/2002 T7 LINEAR

Nongravitational nominal solution


   Observational arc:        2002 10 12 - 2006 03 07  
   Number of observations:   4451  
   RMS:                      0.58 arcsec (8768 residuals used, 2.9% rejected residuals ) 

Heliocentric osculating orbit at the standard epoch close to perihelion time (the same as in MWC08)

  Epoch        Perihelion time   q             e            ω              Ω            i      
  2004 04 25   20040423.060554   0.61459845    1.00048157   157.733043     94.857158   160.583093        
                    ± 0.000014   0.00000017    0.00000099     0.000042      0.000043     0.000006         

  NG parameters:   
   A1 = ( 1.0077  ± 0.0147 )×10-8 AU/day2  
   A2 = ( 0.12460 ± 0.00358)×10-8 AU/day2  
   A3 = (-0.17847 ± 0.00478)×10-8 AU/day2  

Heliocentric osculating orbit at the epoch close to the discovery date (used as starting orbit in this investigation)

  Epoch        Perihelion time   q             e            ω              Ω            i      
  2002 09 03   20040423.144424   0.61501706    1.00040459   157.722432     94.847541   160.571044        
                    ± 0.000021   0.00000032    0.00000024     0.000026      0.00001      0.000007         

  NG parameters:   
   A1 = ( 1.0077  ± 0.0147 )×10-8 AU/day2  
   A2 = ( 0.12460 ± 0.00358)×10-8 AU/day2  
   A3 = (-0.17847 ± 0.00478)×10-8 AU/day2  

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

  Epoch        Perihelion time   q             e             ω             Ω            i      
  1706 08 26   20040423.020468   0.61543197    0.99998725    157.747835    95.551456   160.519757              
                    ± 0.000021   0.00000032    0.00000023      0.000024     0.000011     0.000010         
   1/aori =  (+20.72 ± 0.39)×10-6 AU-1  

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

  Epoch        Perihelion time   q             e             ω             Ω            i      
  22941002 20040423.314092   0.61389477    1.00040522    158.257701    96.121842   160.440816                  
                ± 0.000018   0.00000039    0.00000065      0.000051     0.000019     0.000009         
   1/afut = (-660.08 ± 1.05)×10-6 AU-1  

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

Nongravitational orbit (3825 obs.) with A1= -0.19 10-8 AU/day2, A2= +0.3826 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 24 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]
24 C/2002 T7 LINEAR
weighting
-13.84 ± 0.16 -692.45 ± 0.16
2002 09 03
-653.57 ± 0.16 0.61 +20.72 ± 0.39 -657.85 ± 0.39
2002 09 03
-660.08 ± 1.05 0.58 1.0077 ± 0.0147
0.12460 ± 0.00358
-0.17847 ± 0.00478


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 :

2002t7amz.png
Past, gravitational.


2002t7nmz.png
Past, nongravitational, asynchronous.
2002t7nmsz.png
Past, nongravitational, synchronous.


Future orbits:

2002t7apz.png
Future, gravitational.
2002t7npsz.png
Future, nongravitational.