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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140954865900014 4.8767e-08  
a 2.360178958420393 1.2942e-08 au
q 2.090893191719935 1.1711e-07 au
i 5.607304291705706 5.673e-06 deg
node 247.249361961554 6.0481e-05 deg
peri 45.28953028288785 6.7072e-05 deg
M 35.10911684038737 3.0532e-05 deg
tp 2457271.338454657118
(2015-Sep-05.83845466)
0.00011202 JED
period 1324.389802649461
3.63
1.0893e-05
2.982e-08
d
yr
n .2718232949844636 2.2358e-09 deg/d
Q 2.62946472512085 1.4418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      16153 days (44.22 yr)  
   first obs. used      1971-05-13  
   last obs. used      2015-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49464  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:51:01  

Additional Information
 Earth MOID = 1.07743 au 
 Jupiter MOID = 2.50778 au 
 T_jup = 3.536 
[ 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 13.8 mag n/a MPO347636  

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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