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313517 (2002 WR27)
Classification: Main-belt Asteroid          SPK-ID: 2313517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1063229186868709 6.0605e-08  
a 2.724993889932506 1.807e-08 au
q 2.435264586150992 1.6928e-07 au
i 10.21544392312926 6.7268e-06 deg
node 84.80023262850609 2.7747e-05 deg
peri 338.8348504743749 4.5631e-05 deg
M 47.12918515994167 3.1589e-05 deg
tp 2459181.403097475607
(2020-Nov-27.90309748)
0.00014418 TDB
period 1643.034664104456
4.50
1.6343e-05
4.474e-08
d
yr
n .2191067588925276 2.1795e-09 deg/d
Q 3.01472319371402 1.9992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      9882 days (27.06 yr)  
   first obs. used      1993-12-14  
   last obs. used      2021-01-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:34:12  

Additional Information
 Earth MOID = 1.45178 au 
 Jupiter MOID = 2.26667 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457973.5 (2017-Aug-08.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052146802829878 5.9837e-08  
q 2.438553238516917 1.6638e-07 au
tp 2457530.649197741186
(2016-May-22.14919774)
0.00014815 TDB
node 84.86466844644072 2.7811e-05 deg
peri 337.3121115126917 4.6223e-05 deg
i 10.2035740516701 6.7188e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      9882 days (27.06 yr)  
   first obs. used      1993-12-14  
   last obs. used      2021-01-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:34:12  

Additional Information
 Jupiter MOID = 2.26667 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.580436529911899E-15 -9.910340752028487E-15 2.140739631874635E-12 -3.407536504836753E-14 5.690365172761766E-13 -9.015746249843307E-15
q -9.910340752028487E-15 2.768210546339903E-14 -5.981628002690348E-12 9.566061247385873E-14 -1.57250997464228E-12 2.557109492085374E-14
tp 2.140739631874635E-12 -5.981628002690348E-12 2.194983406848648E-8 -7.667806747214376E-12 5.485714896936827E-9 -6.435177446353999E-12
node -3.407536504836753E-14 9.566061247385873E-14 -7.667806747214376E-12 7.734703048417507E-10 -7.627347846675178E-10 -2.024947008724252E-11
peri 5.690365172761766E-13 -1.57250997464228E-12 5.485714896936827E-9 -7.627347846675178E-10 2.136542827079843E-9 1.830837580004695E-11
i -9.015746249843307E-15 2.557109492085374E-14 -6.435177446353999E-12 -2.024947008724252E-11 1.830837580004695E-11 4.514238143232852E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.85   n/a MPCxxxxx  

313517 (2002 WR27)          Discovered 2002-Nov-24 by NEAT at Palomar
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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