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115924 (2003 WH12)
Classification: Main-belt Asteroid          SPK-ID: 2115924
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03182956253230043 3.7433e-08  
a 2.810540017363631 1.7905e-08 au
q 2.721081758131422 1.1018e-07 au
i 8.380346899898683 4.1619e-06 deg
node 317.4315227120572 3.0171e-05 deg
peri 323.5446948128145 7.6557e-05 deg
M 6.012217447642079 7.073e-05 deg
tp 2459171.758113791350
(2020-Nov-18.25811379)
0.00033813 TDB
period 1721.008783401858
4.71
1.6446e-05
4.503e-08
d
yr
n .2091796413080476 1.9989e-09 deg/d
Q 2.899998276595839 1.8475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      21838 days (59.79 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:45:48  

Additional Information
 Earth MOID = 1.70756 au 
 Jupiter MOID = 2.20784 au 
 T_jup = 3.305 
[ 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 14.65   n/a E2021B55  
diameter diameter 3.565 km 0.777 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.241   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115924 (2003 WH12)          Discovered 2003-Nov-18 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2003 WH12 = 2000 CP121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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