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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 ]

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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

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