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115971 (2003 WR45)
Classification: Main-belt Asteroid          SPK-ID: 2115971
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04402534310475823 4.3987e-08  
a 3.13976937755512 2.8332e-08 au
q 3.001539953438443 1.4126e-07 au
i 11.57959462623112 4.1564e-06 deg
node 136.8617841958508 2.371e-05 deg
peri 43.6220916602629 5.4428e-05 deg
M 279.6917032783088 5.0612e-05 deg
tp 2459653.818001218110
(2022-Mar-15.31800122)
0.00028798 TDB
period 2032.09988382733
5.56
2.7505e-05
7.53e-08
d
yr
n .1771566461201518 2.3979e-09 deg/d
Q 3.277998801671797 2.9579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      554  
   data-arc span      9900 days (27.10 yr)  
   first obs. used      1994-02-08  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:57:19  

Additional Information
 Earth MOID = 2.01845 au 
 Jupiter MOID = 1.73376 au 
 T_jup = 3.178 
[ 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 14.96   n/a MPCxxxxx  
diameter diameter 8.107 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115971 (2003 WR45)          Discovered 2003-Nov-19 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2003 WR45 = 1999 AE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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