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101969 (1999 RJ45)
Classification: Mars-crossing Asteroid          SPK-ID: 2101969
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4409198465568326 8.8106e-08  
a 2.867199608959329 3.8844e-08 AU
q 1.602994397329171 2.5268e-07 AU
i 15.21811318748833 8.0353e-06 deg
node 126.2695165815694 4.343e-05 deg
peri 241.7182972700477 4.6944e-05 deg
M 48.97234869615237 2.997e-05 deg
tp 2456759.268647181542
(2014-Apr-11.76864718)
0.00014289 JED
period 1773.312682090494
4.86
3.6036e-05
9.866e-08
d
yr
n .203009882935935 4.1254e-09 deg/d
Q 4.131404820589486 5.5971e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      10994 days (30.10 yr)  
   first obs. used      1984-08-26  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56894  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 17:08:40  

Additional Information
 Earth MOID = .661304 AU 
 T_jup = 3.101 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO309891  

101969 (1999 RJ45)          Discovered 1999-Sep-13 by McNaught, R. H. at Siding Spring (413)
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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