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433961 (1999 RL41)
Classification: Mars-crossing Asteroid          SPK-ID: 2433961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .552309960726142 5.7231e-08  
a 3.089172956074813 3.2091e-08 au
q 1.382991962028873 1.7451e-07 au
i 18.0174212975501 1.8406e-05 deg
node 11.96293950232651 2.7364e-05 deg
peri 308.806415187155 3.8654e-05 deg
M 334.224158654258 2.4713e-05 deg
tp 2459342.494692747305
(2021-May-07.99469275)
0.00013822 TDB
period 1983.178306514304
5.43
3.0902e-05
8.461e-08
d
yr
n .1815267940444282 2.8286e-09 deg/d
Q 4.795353950120752 4.9815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      11518 days (31.53 yr)  
   first obs. used      1988-10-08  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:14:23  

Additional Information
 Earth MOID = .44585 au 
 Jupiter MOID = 1.15243 au 
 T_jup = 2.906 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.91   n/a E2021B25  

433961 (1999 RL41)          Discovered 1999-Sep-13 by LINEAR at Socorro
Reference: Last Updated: 2015-06-04

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