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85823 (1998 XM19)
Classification: Main-belt Asteroid          SPK-ID: 2085823
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192467836613036 4.0707e-08  
a 3.029363426186511 2.1224e-08 au
q 2.668121581072583 1.3092e-07 au
i 3.128590108194636 5.1108e-06 deg
node 81.33158191335573 8.9481e-05 deg
peri 42.91020030314047 9.3075e-05 deg
M 334.6479049204577 2.5468e-05 deg
tp 2459136.124093306004
(2020-Oct-13.62409331)
0.0001367 TDB
period 1925.863461657662
5.27
2.024e-05
5.541e-08
d
yr
n .1869291396650387 1.9645e-09 deg/d
Q 3.390605271300439 2.3755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      7729 days (21.16 yr)  
   first obs. used      1998-11-27  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:39:15  

Additional Information
 Earth MOID = 1.68479 au 
 Jupiter MOID = 1.67437 au 
 T_jup = 3.231 
[ 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 15.1   n/a MPO267963  
diameter diameter 5.490 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85823 (1998 XM19)          Discovered 1998-Dec-10 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 XM19 = 1999 CD146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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