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46271 (2001 HE63)
Classification: Main-belt Asteroid          SPK-ID: 2046271
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04515317263143792 7.1609e-08  
a 2.980460972071954 2.2166e-08 au
q 2.845883703278726 2.2116e-07 au
i 9.58153836089306 7.1874e-06 deg
node 227.3073191937244 3.3981e-05 deg
peri 12.93636774904608 8.7953e-05 deg
M 282.8225716529366 8.4218e-05 deg
tp 2459603.413100305958
(2022-Jan-23.91310031)
0.00044106 TDB
period 1879.418882135687
5.15
2.0966e-05
5.74e-08
d
yr
n .1915485703702797 2.1368e-09 deg/d
Q 3.115038240865183 2.3167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      8187 days (22.41 yr)  
   first obs. used      1998-10-23  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:38:10  

Additional Information
 Earth MOID = 1.83334 au 
 Jupiter MOID = 1.87965 au 
 T_jup = 3.237 
[ 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 14.66   n/a MPCxxxxx  
diameter diameter 4.982 km 0.644 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.124   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46271 (2001 HE63)          Discovered 2001-Apr-26 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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