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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4409198499339321 6.1938e-08  
a 2.867199603312308 3.4834e-08 AU
q 1.602994384489216 1.6795e-07 AU
i 15.21811370518024 7.9134e-06 deg
node 126.2694722600126 2.7987e-05 deg
peri 241.7183380595348 3.5815e-05 deg
M 48.97235299633725 2.8262e-05 deg
tp 2456759.268626712063
(2014-Apr-11.76862671)
0.00013495 JED
period 1773.312676851619
4.86
3.2317e-05
8.848e-08
d
yr
n .2030098835356844 3.6996e-09 deg/d
Q 4.131404822135401 5.0193e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      11160 days (30.55 yr)  
   first obs. used      1984-08-26  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53244  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 20:31:48  

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
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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