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452313 (1998 XR16)
Classification: Apollo [NEO]          SPK-ID: 2452313
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5783127841224408 9.3871e-08  
a 2.277525836719983 1.648e-08 au
q .960403529175658 2.1157e-07 au
i 20.53401554332993 1.1961e-05 deg
node 91.81973416532914 1.5773e-05 deg
peri 68.19860784516273 3.7827e-05 deg
M 72.38074385785922 3.2715e-05 deg
tp 2458748.085710788071
(2019-Sep-21.58571079)
0.00011137 TDB
period 1255.432581554323
3.44
1.3626e-05
3.731e-08
d
yr
n .2867537494958845 3.1123e-09 deg/d
Q 3.594648144264307 2.601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6377 days (17.46 yr)  
   first obs. used      1998-12-15  
   last obs. used      2016-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57287  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:07  

Additional Information
 Earth MOID = .166712 au 
 Jupiter MOID = 1.90931 au 
 T_jup = 3.296 
[ 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 18.5   n/a MPO368961  
diameter diameter 1.514 km 0.569 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.031   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

452313 (1998 XR16)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: Last Updated: 2016-01-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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