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437943 (2002 RW160)
Classification: Main-belt Asteroid          SPK-ID: 2437943
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2180270743550156 1.4165e-07  
a 2.765200860257103 2.626e-08 au
q 2.162312206691274 3.8555e-07 au
i 4.033437776371872 1.1868e-05 deg
node 144.8475791535232 0.00022297 deg
peri 198.9736079037617 0.0002252 deg
M 309.2080423073901 3.6181e-05 deg
tp 2459237.463198571692
(2021-Jan-22.96319857)
0.00017096 TDB
period 1679.532653615774
4.60
2.3925e-05
6.55e-08
d
yr
n .2143453413811132 3.0533e-09 deg/d
Q 3.368089513822931 3.1985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      6091 days (16.68 yr)  
   first obs. used      2002-08-20  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69868  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:58:49  

Additional Information
 Earth MOID = 1.15504 au 
 Jupiter MOID = 2.04585 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457300.5 (2015-Oct-05.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2179158159384555 1.4245e-07  
q 2.161277812360699 3.8746e-07 au
tp 2457561.554662148243
(2016-Jun-22.05466215)
0.00015581 TDB
node 144.8861239827942 0.00022311 deg
peri 199.4027996041721 0.00022532 deg
i 4.032824359718651 1.1871e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      6091 days (16.68 yr)  
   first obs. used      2002-08-20  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69868  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:58:49  

Additional Information
 Jupiter MOID = 2.04585 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.029326953646722E-14 -5.512571876193412E-14 1.753321643601199E-11 1.941757736157028E-13 3.881575669907384E-12 -3.258442016688711E-15
q -5.512571876193412E-14 1.501225297144416E-13 -4.673080163125979E-11 -4.868222320419651E-13 -1.041791646134884E-11 1.126167264013479E-14
tp 1.753321643601199E-11 -4.673080163125979E-11 2.427593500795437E-8 2.129383928543395E-10 5.376098340168534E-9 -2.428671541912707E-12
node 1.941757736157028E-13 -4.868222320419651E-13 2.129383928543395E-10 4.977815134740593E-8 -4.960558282654768E-8 1.928641899771893E-9
peri 3.881575669907384E-12 -1.041791646134884E-11 5.376098340168534E-9 -4.960558282654768E-8 5.076892974663274E-8 -1.924538268635693E-9
i -3.258442016688711E-15 1.126167264013479E-14 -2.428671541912707E-12 1.928641899771893E-9 -1.924538268635693E-9 1.409294067511186E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO472433  

437943 (2002 RW160)          Discovered 2002-Sep-12 by NEAT at Palomar
Reference: Last Updated: 2015-07-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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