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102946 (1999 XM53)
Classification: Main-belt Asteroid          SPK-ID: 2102946
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884456239690594 6.1251e-08  
a 2.704940325726291 2.0697e-08 au
q 2.195206158245729 1.6545e-07 au
i 12.77325831297986 6.8935e-06 deg
node 73.45128149354464 2.7916e-05 deg
peri 317.7169805837722 3.2256e-05 deg
M 288.5969389467347 2.073e-05 deg
tp 2459522.791824667122
(2021-Nov-04.29182467)		 9.602e-05 TDB
period 1624.931132764902
4.45		 1.865e-05
5.106e-08		 d
yr
n .2215478507002583 2.5428e-09 deg/d
Q 3.214674493206853 2.4598e-08 au
   Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      7217 days (19.76 yr)  
   first obs. used      1999-10-21  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:51:38  

Additional Information
 Earth MOID = 1.21924 au 
 Jupiter MOID = 2.24728 au 
 T_jup = 3.305 
[ 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 15.2   n/a MPO338001  
diameter diameter 5.328 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102946 (1999 XM53)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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