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JPL Small-Body Database Browser
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193971 (2001 RW99)
Classification: Main-belt Asteroid          SPK-ID: 2193971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848352086854708 4.7867e-08  
a 2.291791914599334 1.2344e-08 au
q 1.868188077800692 1.0969e-07 au
i 3.089382665298847 4.4322e-06 deg
node 99.35935628684371 0.00010937 deg
peri 233.4513737598596 0.00011068 deg
M 148.3395400920068 1.6206e-05 deg
tp 2458478.325537140083
(2018-Dec-25.82553714)
5.594e-05 TDB
period 1267.24679416543
3.47
1.0238e-05
2.803e-08
d
yr
n .2840804187925249 2.2952e-09 deg/d
Q 2.715395751397977 1.4626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2001-08-13  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57925  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:12:53  

Additional Information
 Earth MOID = .859727 au 
 Jupiter MOID = 2.64212 au 
 T_jup = 3.573 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO454349  

193971 (2001 RW99)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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