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20412 (1998 QG73)
Classification: Main-belt Asteroid          SPK-ID: 2020412
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05077487884624715 2.0478e-08  
a 3.013212123208341 1.3837e-08 au
q 2.860216642714394 6.3956e-08 au
i 8.399694456303122 5.0524e-07 deg
node 246.6401984767428 5.305e-06 deg
peri 226.1161543897295 2.274e-05 deg
M 329.7718940551684 2.1294e-05 deg
tp 2459360.917380708234
(2021-May-26.41738071)
0.00011285 TDB
period 1910.482157246713
5.23
1.316e-05
3.603e-08
d
yr
n .1884341073976913 1.298e-09 deg/d
Q 3.166207603702288 1.454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2402  
   data-arc span      25418 days (69.59 yr)  
   first obs. used      1951-08-11  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:50  

Additional Information
 Earth MOID = 1.88429 au 
 Jupiter MOID = 1.9873 au 
 T_jup = 3.231 
[ 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 12.44   n/a E2021B10  
diameter diameter 11.685 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.156   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20412 (1998 QG73)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QG73 = 1978 WM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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