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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4430164314718953 5.8207e-08  
a 2.871546017060854 2.5703e-08 au
q 1.59940394777522 1.6154e-07 au
i 15.10642805778708 6.9689e-06 deg
node 125.8832803639033 2.4545e-05 deg
peri 242.473946306031 2.8749e-05 deg
M 169.698106221506 2.3139e-05 deg
tp 2456762.687969403475
(2014-Apr-15.18796940)
0.00010395 JED
period 1777.346475635126
4.87
2.3863e-05
6.533e-08
d
yr
n .2025491399314002 2.7195e-09 deg/d
Q 4.143688086346488 3.709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      11544 days (31.61 yr)  
   first obs. used      1984-08-26  
   last obs. used      2016-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53556  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 15:54:02  

Additional Information
 Earth MOID = .657297 au 
 Jupiter MOID = 1.6096 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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