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213P/Van Ness-B
Classification: Jupiter-family Comet          SPK-ID: 1003151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455791.5 (2011-Aug-18.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3797273022751771 4.5881e-05  
a 3.422250471846395 0.00021829 au
q 2.122728532462212 6.7295e-05 au
i 10.24005100770656 0.00045556 deg
node 312.6706695170379 0.0010415 deg
peri 3.341503759615148 0.0079435 deg
M 9.74101651092603 0.0022527 deg
tp 2455728.929749505833
(2011-Jun-16.42974951)
0.018868 TDB
period 2312.416794760032
6.33
0.22125
0.0006057
d
yr
n .155681277188336 1.4895e-05 deg/d
Q 4.721772411230579 0.00030118 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      77 days  
   first obs. used      2011-07-12  
   last obs. used      2011-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      5  
   norm. resid. RMS      .92217  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:41:56  

Additional Information
 Earth MOID = 1.10881 au 
 T_jup = 2.997 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.3   0.7 11 from 68 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 37.   n/a 11 autocmod 2.5c
comet nuclear magnitude M2 18.2   0.7 11 from 59 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.5c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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