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13950 (1990 RP9)
Classification: Main-belt Asteroid          SPK-ID: 2013950
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1139069141899501 5.012e-08  
a 2.359714829259024 1.4488e-08 AU
q 2.090926994689864 1.1902e-07 AU
i 5.607803057561095 5.7345e-06 deg
node 247.2544669603856 6.4245e-05 deg
peri 45.32932609767093 7.2091e-05 deg
M 286.3202332249108 3.5977e-05 deg
tp 2457271.477636997795
(2015-Sep-05.97763700)
0.00013343 JED
period 1323.999159999895
3.62
1.2194e-05
3.339e-08
d
yr
n .2719034957696109 2.5041e-09 deg/d
Q 2.628502663828185 1.6138e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      15987 days (43.77 yr)  
   first obs. used      1971-05-13  
   last obs. used      2015-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50091  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:36:55  

Additional Information
 Earth MOID = 1.08045 AU 
 T_jup = 3.537 
[ 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 13.7 mag n/a MPO256967  

13950 (1990 RP9)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 RP9 = 1978 EM7 = 1994 UX 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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