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100446 (1996 RC4)
Classification: Mars-crossing Asteroid          SPK-ID: 2100446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269001990768089 3.2688e-08  
a 1.703421875329194 4.004e-09 au
q 1.316915112705209 5.6391e-08 au
i 29.49202476077806 7.5533e-06 deg
node 179.47495033 7.3216e-06 deg
peri 258.9580690435039 1.7429e-05 deg
M 184.4661386331663 1.4768e-05 deg
tp 2459396.449831795854
(2021-Jun-30.94983180)
3.3762e-05 TDB
period 812.0481047734755
2.22
2.8631e-06
7.839e-09
d
yr
n .443323490177252 1.5631e-09 deg/d
Q 2.089928637953179 4.9125e-09 au
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      8720 days (23.87 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:02:59  

Additional Information
 Earth MOID = .492312 au 
 Jupiter MOID = 3.35232 au 
 T_jup = 4.025 
[ 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 16.9   n/a MPO453458  
diameter diameter 0.911 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.461   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

100446 (1996 RC4)          Discovered 1996-Sep-15 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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