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285P/LINEAR
Classification: Jupiter-family Comet          SPK-ID: 1000462
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453807.5 (2006-Mar-13.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6209279165176597 3.3761e-07  
a 4.511663294761228 1.9352e-07 au
q 1.710245605115939 1.4633e-06 au
i 24.49718721600884 5.2712e-05 deg
node 186.442100153618 6.9103e-05 deg
peri 177.2960744652221 0.00022841 deg
M 85.29802546334702 4.7578e-05 deg
tp 2452978.146035067817
(2003-Dec-04.64603507)
0.0004742 TDB
period 3500.285331972682
9.58
0.00022521
6.166e-07
d
yr
n .1028487582745467 6.6173e-09 deg/d
Q 7.313080984406517 3.1368e-07 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      3678 days (10.07 yr)  
   first obs. used      2003-09-19  
   last obs. used      2013-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .81035  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:14  

Additional Information
 Earth MOID = .709803 au 
 T_jup = 2.482 
[ 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 13.6   0.6 22 from 93 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 17.   n/a 22 autocmod 2.5c
comet nuclear magnitude M2 17.8   0.6 22 from 30 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 22 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 22 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.5   285P/2013 K2       
 2003.9   285P/2003 U2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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