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129853 (1999 RJ94)
Classification: Main-belt Asteroid          SPK-ID: 2129853
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2604384262369605 5.5897e-08  
a 2.458463716186549 1.5755e-08 au
q 1.818185294982255 1.4258e-07 au
i 9.680581495696751 4.4251e-06 deg
node 156.7598557194379 4.3059e-05 deg
peri 154.0554546714185 4.4926e-05 deg
M 163.9058124792079 1.4943e-05 deg
tp 2458359.458736715057
(2018-Aug-28.95873671)
5.5765e-05 TDB
period 1407.972367129166
3.85
1.3534e-05
3.705e-08
d
yr
n .2556868361941183 2.4578e-09 deg/d
Q 3.098742137390844 1.9858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1998-02-26  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56818  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:09:39  

Additional Information
 Earth MOID = .809804 au 
 Jupiter MOID = 2.23239 au 
 T_jup = 3.425 
[ 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 16.2   n/a MPO302661  
diameter diameter 2.429 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.099   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129853 (1999 RJ94)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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