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101522 (1998 XJ63)
Classification: Main-belt Asteroid          SPK-ID: 2101522
[ 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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704340266068654 4.1416e-08  
a 2.39658795829907 8.9993e-09 au
q 1.988127822448633 1.0084e-07 au
i 6.841192327372882 3.3422e-06 deg
node 287.6350320131684 3.9155e-05 deg
peri 109.3871024555514 4.1206e-05 deg
M 359.0567380008316 1.1599e-05 deg
tp 2459204.050735514118
(2020-Dec-20.55073551)		 4.3661e-05 TDB
period 1355.153484619688
3.71		 7.633e-06
2.09e-08		 d
yr
n .2656525656213997 1.4963e-09 deg/d
Q 2.805048094149507 1.0533e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      8123 days (22.24 yr)  
   first obs. used      1998-11-14  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:10  

Additional Information
 Earth MOID = 1.00714 au 
 Jupiter MOID = 2.63683 au 
 T_jup = 3.499 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457939.5 (2017-Jul-05.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722062607804019 4.1598e-08  
q 1.983743015438246 1.0149e-07 au
tp 2457847.510762650550
(2017-Apr-04.01076265)		 4.4049e-05 TDB
node 287.683737393243 3.922e-05 deg
peri 109.096774493342 4.1185e-05 deg
i 6.836242628483402 3.339e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      8123 days (22.24 yr)  
   first obs. used      1998-11-14  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:10  

Additional Information
 Jupiter MOID = 2.63683 au 
 T_jup = 3.499 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.73036368878686E-15 -4.210798488910769E-15 -5.559973146732781E-13 5.212852319938948E-15 -1.171482630978092E-13 -6.462025301057362E-15
q -4.210798488910769E-15 1.030034077671424E-14 1.248089435226674E-12 -1.195780307674358E-14 2.548906942728785E-13 1.582821529294027E-14
tp -5.559973146732781E-13 1.248089435226674E-12 1.940279322115433E-9 -4.095366748240952E-12 5.746279548077164E-10 4.840590105074269E-12
node 5.212852319938948E-15 -1.195780307674358E-14 -4.095366748240952E-12 1.53824742721502E-9 -1.528616129680007E-9 2.721707795353947E-11
peri -1.171482630978092E-13 2.548906942728785E-13 5.746279548077164E-10 -1.528616129680007E-9 1.696228965198677E-9 -2.580683921349662E-11
i -6.462025301057362E-15 1.582821529294027E-14 4.840590105074269E-12 2.721707795353947E-11 -2.580683921349662E-11 1.114918160616724E-11

[ 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 15.48   n/a E2021B55  
diameter diameter 2.169 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.342   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101522 (1998 XJ63)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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