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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4408065678211692 9.4998e-08  
a 2.86612971878514 4.8255e-08 AU
q 1.602720914517209 2.7277e-07 AU
i 15.21811536563783 8.7145e-06 deg
node 126.2697013248524 4.6772e-05 deg
peri 241.6836063283873 5.1687e-05 deg
M 8.387479999906768 3.4879e-05 deg
tp 2456759.207499073795
(2014-Apr-11.70749907)
0.0001707 JED
period 1772.320212220978
4.85
4.4759e-05
1.225e-07
d
yr
n .2031235650971147 5.1298e-09 deg/d
Q 4.12953852305307 6.9526e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      10523 days (28.81 yr)  
   first obs. used      1984-08-26  
   last obs. used      2013-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58374  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-06 18:57:27  

Additional Information
 Earth MOID = .659637 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 14.7 mag n/a MPO264062  

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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