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160645 (1999 XW43)
Classification: Main-belt Asteroid          SPK-ID: 2160645
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051251580497193 5.7868e-08  
a 2.629474188001903 1.137e-08 au
q 2.353050298400546 1.5505e-07 au
i 3.359712137471212 3.5417e-06 deg
node 278.3683374259425 0.0001061 deg
peri 103.2841376404519 0.0001084 deg
M 6.582907970579687 1.9801e-05 deg
tp 2459172.021502163564
(2020-Nov-18.52150216)		 8.5692e-05 TDB
period 1557.40582534897
4.26		 1.0102e-05
2.766e-08		 d
yr
n .2311536236352104 1.4993e-09 deg/d
Q 2.905898077603261 1.2566e-08 au
   Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      7759 days (21.24 yr)  
   first obs. used      1999-10-15  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:02:12  

Additional Information
 Earth MOID = 1.35737 au 
 Jupiter MOID = 2.54155 au 
 T_jup = 3.390 
[ 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 15.69   n/a E2021B55  
diameter diameter 5.354 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160645 (1999 XW43)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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