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JPL Small-Body Database Browser
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13950 (1990 RP9)
Classification: Main-belt Asteroid          SPK-ID: 2013950
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140233625450423 3.5653e-08  
a 2.360131447653893 7.4031e-09 au
q 2.091021323944098 8.3384e-08 au
i 5.609428063573086 3.6275e-06 deg
node 247.2355098616214 4.3366e-05 deg
peri 44.86808106235451 4.7463e-05 deg
M 1.733008843637079 1.8745e-05 deg
tp 2458594.124694618625
(2019-Apr-20.62469462)		 6.8961e-05 TDB
period 1324.349812594186
3.63		 6.2312e-06
1.706e-08		 d
yr
n .2718315029582845 1.279e-09 deg/d
Q 2.629241571363689 8.2472e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1820  
   data-arc span      17701 days (48.46 yr)  
   first obs. used      1971-05-13  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47713  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:45:45  

Additional Information
 Earth MOID = 1.07853 au 
 Jupiter MOID = 2.5129 au 
 T_jup = 3.536 
[ 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 13.8   n/a MPO347636  
diameter diameter 3.463 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.535   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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