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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4418559302192294 6.2907e-08  
a 2.872387635390065 3.154e-08 au
q 1.603206124804575 1.719e-07 au
i 15.17132879846426 7.8783e-06 deg
node 126.1736352692929 2.7901e-05 deg
peri 242.0632074884603 3.5454e-05 deg
M 129.55447549005 2.9254e-05 deg
tp 2456760.598807728390
(2014-Apr-13.09880773)
0.00013445 JED
period 1778.127913732104
4.87
2.9287e-05
8.018e-08
d
yr
n .2024601251798571 3.3346e-09 deg/d
Q 4.141569145975555 4.5476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      11204 days (30.67 yr)  
   first obs. used      1984-08-26  
   last obs. used      2015-04-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53061  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 19:23:47  

Additional Information
 Earth MOID = .659954 au 
 Jupiter MOID = 1.61017 au 
 T_jup = 3.098 
[ 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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