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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229581318789936 4.8186e-08  
a 2.399758888418831 1.3254e-08 au
q 2.104689018538841 1.2208e-07 au
i 6.823168788359178 4.8596e-06 deg
node 12.47709695052514 2.8265e-05 deg
peri 330.0584199757955 3.2926e-05 deg
M 297.8799941688904 1.9961e-05 deg
tp 2459434.803527635208
(2021-Aug-08.30352764)
7.6312e-05 TDB
period 1357.843883305514
3.72
1.1249e-05
3.08e-08
d
yr
n .2651262081202013 2.1965e-09 deg/d
Q 2.69482875829882 1.4884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:08  

Additional Information
 Earth MOID = 1.09861 au 
 Jupiter MOID = 2.69652 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457434.5 (2016-Feb-16.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218724255252357 4.8167e-08  
q 2.108533673695401 1.2186e-07 au
tp 2458076.843454569569
(2017-Nov-19.34345457)
7.1446e-05 TDB
node 12.5011779337167 2.8263e-05 deg
peri 329.8843910942636 3.299e-05 deg
i 6.822695947451149 4.8583e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:08  

Additional Information
 Jupiter MOID = 2.69652 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.320058313766082E-15 -5.849539182711261E-15 -1.265041522243657E-13 -3.036158907121457E-15 4.81693363090682E-14 -7.378625921091867E-16
q -5.849539182711261E-15 1.48503275163763E-14 6.583948156148643E-13 6.512293893091062E-15 -4.973675105280212E-14 2.151641955980734E-15
tp -1.265041522243657E-13 6.583948156148643E-13 5.104547439391513E-9 -3.080236099931992E-12 1.216597185145072E-9 1.307397235938354E-12
node -3.036158907121457E-15 6.512293893091062E-15 -3.080236099931992E-12 7.987849835780107E-10 -7.93453879985735E-10 -1.328743758722862E-12
peri 4.81693363090682E-14 -4.973675105280212E-14 1.216597185145072E-9 -7.93453879985735E-10 1.088340036535471E-9 1.564851066930193E-12
i -7.378625921091867E-16 2.151641955980734E-15 1.307397235938354E-12 -1.328743758722862E-12 1.564851066930193E-12 2.360267146563805E-11

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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