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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1467763537975846 4.0303e-08  
a 2.314939821716115 9.6715e-09 au
q 1.975161395423794 9.3243e-08 au
i 5.608873252391873 4.1721e-06 deg
node 121.9932451793628 4.6223e-05 deg
peri 12.66693421656701 4.8455e-05 deg
M 5.421661927683772 1.4432e-05 deg
tp 2459181.125169222109
(2020-Nov-27.62516922)
5.1563e-05 TDB
period 1286.49465294499
3.52
8.0622e-06
2.207e-08
d
yr
n .2798301564455811 1.7536e-09 deg/d
Q 2.654718248008437 1.1091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      2000-03-29  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:57:22  

Additional Information
 Earth MOID = .989711 au 
 Jupiter MOID = 2.37741 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 16.89   n/a MPCxxxxx  
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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