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102898 (1999 XD11)
Classification: Main-belt Asteroid          SPK-ID: 2102898
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229581308795574 4.8251e-08  
a 2.399758888924511 1.3264e-08 au
q 2.10468902138075 1.2225e-07 au
i 6.823168751459095 4.8632e-06 deg
node 12.47709702641944 2.8265e-05 deg
peri 330.058419971053 3.2927e-05 deg
M 297.8799940009465 1.9962e-05 deg
tp 2459434.803528342717
(2021-Aug-08.30352834)		 7.6316e-05 TDB
period 1357.843883734704
3.72		 1.1258e-05
3.082e-08		 d
yr
n .2651262080363996 2.1981e-09 deg/d
Q 2.694828756468272 1.4895e-08 au
   Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:33:26  

Additional Information
 Earth MOID = 1.09861 au 
 Jupiter MOID = 2.69652 au 
 T_jup = 3.507 
[ 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 15.66   n/a E2021B55  
diameter diameter 1.835 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102898 (1999 XD11)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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