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233952 (2009 XQ9)
Classification: Main-belt Asteroid          SPK-ID: 2233952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1467581625036395 4.3605e-08  
a 2.314748665030095 1.5259e-08 au
q 1.975040404292526 1.0489e-07 au
i 5.608832743328276 4.6279e-06 deg
node 121.9937505956602 5.047e-05 deg
peri 12.71390150726822 5.3201e-05 deg
M 309.4150293513796 1.9871e-05 deg
tp 2459181.247871573653
(2020-Nov-27.74787157)
7.2013e-05 TDB
period 1286.33530734864
3.52
1.272e-05
3.483e-08
d
yr
n .2798648205824516 2.7674e-09 deg/d
Q 2.654456925767664 1.7499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      2000-03-29  
   last obs. used      2019-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:25:49  

Additional Information
 Earth MOID = .989677 au 
 Jupiter MOID = 2.37823 au 
 T_jup = 3.561 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO494291  
diameter diameter 1.406 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.205   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233952 (2009 XQ9)          Discovered 2009-Dec-12 by LINEAR at Socorro
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2009 XQ9 = 2002 YH35 = 2007 GA77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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