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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .226900198493362 3.249e-08  
a 1.703421875355211 3.9889e-09 au
q 1.316915113719178 5.6086e-08 au
i 29.49202815792248 6.8371e-06 deg
node 179.4749511410677 7.2783e-06 deg
peri 258.9580687824482 1.636e-05 deg
M 184.4661382142799 1.4045e-05 deg
tp 2459396.449832749802
(2021-Jun-30.94983275)
3.2194e-05 TDB
period 812.0481047920795
2.22
2.8524e-06
7.809e-09
d
yr
n .4433234901670955 1.5572e-09 deg/d
Q 2.089928636991243 4.894e-09 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      8756 days (23.97 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50168  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:06:08  

Additional Information
 Earth MOID = .492312 au 
 Jupiter MOID = 3.35232 au 
 T_jup = 4.025 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457142.5 (2015-Apr-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268825583713144 3.2453e-08  
q 1.316905412857357 5.6044e-08 au
tp 2456960.565767336344
(2014-Oct-30.06576734)
3.0012e-05 TDB
node 179.4991320512061 7.2761e-06 deg
peri 258.9746873088058 1.637e-05 deg
i 29.49759452854029 6.8378e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      8756 days (23.97 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50168  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:06:08  

Additional Information
 Jupiter MOID = 3.35232 au 
 T_jup = 4.025 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.053170321228093E-15 -1.816129099795375E-15 -3.100552181143887E-13 7.862245040177469E-15 -1.360709250439676E-13 3.623344842084955E-15
q -1.816129099795375E-15 3.140982830897479E-15 5.394147543871712E-13 -1.372125481441265E-14 2.365615177182541E-13 -5.36748684339077E-15
tp -3.100552181143887E-13 5.394147543871712E-13 9.007453628665533E-10 -1.701624082818749E-11 4.438130592431332E-10 4.568335300337951E-12
node 7.862245040177469E-15 -1.372125481441265E-14 -1.701624082818749E-11 5.294217686020269E-11 -5.368602671750697E-11 3.568452451295404E-12
peri -1.360709250439676E-13 2.365615177182541E-13 4.438130592431332E-10 -5.368602671750697E-11 2.679845938676593E-10 -1.500910072961436E-12
i 3.623344842084955E-15 -5.36748684339077E-15 4.568335300337951E-12 3.568452451295404E-12 -1.500910072961436E-12 4.675585018207673E-11

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

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