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287P/Christensen (2013 L1)
Classification: Jupiter-family Comet          SPK-ID: 1002414
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457800.5 (2017-Feb-16.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2690855682830409 7.2381e-06  
a 4.175589673964971 5.8146e-05 au
q 3.05199875362931 1.2834e-05 au
i 16.30241060819607 3.8867e-05 deg
node 139.0469656594007 9.3181e-05 deg
peri 188.9032147685223 0.0015794 deg
M 90.26207917496895 0.0027422 deg
tp 2457019.091768763866
(2014-Dec-27.59176876)
0.0075766 TDB
period 3116.557537963506
8.53
0.065098
0.0001782
d
yr
n .1155120659942122 2.4128e-06 deg/d
Q 5.299180594300633 7.3792e-05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 8.279241444688861E-7 1.896E-7
A2 [EST] 3.841852224195566E-7 9.151E-8
A3 [EST] -6.872296817210905E-7 2.654E-8
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      3767 days (10.31 yr)  
   first obs. used      2006-08-30  
   last obs. used      2016-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      4  
   norm. resid. RMS      .75661  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Jan-24 09:31:50  

Additional Information
 Earth MOID = 2.04198 au 
 Jupiter MOID = .0627023 au 
 T_jup = 2.902 
[ 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 4.6   0.8 34 2 parameter fit from 137 observations, autocmod 2.6h
comet total magnitude slope K1 24.   n/a 34 autocmod 2.6h
comet nuclear magnitude M2 14.8   1. 34 from 43 observations, autocmod 2.6h
comet nuclear magnitude slope K2 5.   n/a 34 autocmod 2.6h
comet nuclear phase coefficient PC 0.03   n/a 34 autocmod 2.6h

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.0   287P/2013 L1       
 2006.5   287P/2006 R2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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