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JPL Small-Body Database Browser
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20225 (1997 MG1)
Classification: Main-belt Asteroid          SPK-ID: 2020225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057474051955837 4.9324e-08  
a 3.001269254663253 1.616e-08 au
q 2.683892818689331 1.5401e-07 au
i 10.54902469318721 5.9117e-06 deg
node 189.3994823844738 1.9031e-05 deg
peri 210.6245374625583 2.9075e-05 deg
M 288.1424743555153 2.201e-05 deg
tp 2458979.575418921760
(2020-May-10.07541892)
0.00011659 TDB
period 1899.13512311856
5.20
1.5338e-05
4.199e-08
d
yr
n .1895599715984642 1.531e-09 deg/d
Q 3.318645690637176 1.7868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1671  
   data-arc span      9609 days (26.31 yr)  
   first obs. used      1993-08-16  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49864  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:42:37  

Additional Information
 Earth MOID = 1.69581 au 
 Jupiter MOID = 2.1337 au 
 T_jup = 3.219 
[ 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 13.0   n/a MPO313581  
diameter diameter 9.280 km 0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.156   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20225 (1997 MG1)          Discovered 1997-Jun-26 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 MG1 = 1998 QB66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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