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JPL Small-Body Database Browser
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185812 (1999 XJ5)
Classification: Main-belt Asteroid          SPK-ID: 2185812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710474532202076 5.601e-08  
a 3.147055080493747 3.286e-08 au
q 2.608759323831576 1.9096e-07 au
i 6.409692138253347 5.0051e-06 deg
node 85.75844974668659 4.7444e-05 deg
peri 287.6029582846083 4.9349e-05 deg
M 282.8778565536982 1.6418e-05 deg
tp 2459437.349188821165
(2021-Aug-10.84918882)
9.7399e-05 TDB
period 2039.177089069361
5.58
3.1938e-05
8.744e-08
d
yr
n .1765418030291311 2.7651e-09 deg/d
Q 3.685350837155918 3.8481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      7147 days (19.57 yr)  
   first obs. used      1999-11-02  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55126  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:10:24  

Additional Information
 Earth MOID = 1.61875 au 
 Jupiter MOID = 1.8156 au 
 T_jup = 3.176 
[ 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 MPO436918  
diameter diameter 4.153 km 0.562 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.085   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

185812 (1999 XJ5)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1946-Nov-04 19:54 00:03 Jupiter 1.85904609697177 1.85904550951778 1.85904668442555 2.24411101443255 2.03095790546735 2432129.329330964 3.31205658599176 132.04680799814 16.3259178935465 82.7015369712874 1684854.17411052 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
1957-Apr-22 01:09 00:03 Jupiter 1.85904497984854 1.85904427110396 1.85904568859598 1.937849973851 1.6864215790422 2435950.548066278 2.73838070286171 221.639392516457 17.0172726612902 -84.367462967559 2177259.19395252 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2031-Jan-31 21:49 < 00:01 Jupiter 1.96425250852741 1.96425204315952 1.9642529738953 3.07427472149429 2.93065309423364 2462898.408781198 0.809696299282912 66.4531679077551 15.2983877420723 84.7615709389373 2573749.47347343 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2041-Jul-27 01:39 00:01 Jupiter 1.83586050272101 1.83585995855447 1.83586104688723 2.1235989996975 1.89391660922157 2466727.568518303 1.41789176785061 120.749309264493 23.1825250668318 83.0320435278886 1671026.21753656 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2052-Jan-11 04:56 00:02 Jupiter 1.87846246470841 1.87846192770068 1.87846300171603 2.03014993414315 1.79434763225328 2470547.705805986 2.07978517720232 147.977658406679 15.1860878398334 -88.2658731074796 2328860.85646803 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2125-Oct-24 18:33 00:06 Jupiter 1.91986832122901 1.91986699388519 1.91986964857589 2.84486507728499 2.68530848723637 2497497.273226958 5.5270976113127 163.682355979433 14.6005112664174 80.7242185121263 1464310.37406964 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2136-Apr-18 18:50 00:06 Jupiter 1.82770650738932 1.82770598639556 1.82770702838276 2.05629977457665 1.81700288210786 2501326.284636983 6.2214272621777 281.482937487652 27.5695545374906 77.5118891328729 1693077.25833074 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10
2146-Oct-03 09:56 00:07 Jupiter 1.91534856151988 1.91534716677649 1.91534995628929 2.18785075361649 1.97540706957237 2505145.913767553 6.98595253828791 419.559826274708 11.7017053466568 -88.8621542302913 2431572.80654881 T 13 CATAB v2.0f-lin.ifort 2020-Feb-24 20:10:41 2020-Feb-24 20:10

Alternate Designations
 1999 XJ5 = 2005 XB113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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