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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106238230309493 1.0863e-08  
a 3.002525153235681 1.2773e-08 au
q 2.683542194496183 3.0746e-08 au
i 10.5476628843541 6.0435e-07 deg
node 189.39136085399 1.1152e-06 deg
peri 210.7162605368984 1.2553e-05 deg
M 41.79023532142251 1.0752e-05 deg
tp 2458979.902429936935
(2020-May-10.40242994)
5.6553e-05 TDB
period 1900.327304019597
5.20
1.2126e-05
3.32e-08
d
yr
n .1894410500962246 1.2089e-09 deg/d
Q 3.321508111975179 1.413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2096  
   data-arc span      10065 days (27.56 yr)  
   first obs. used      1993-08-16  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:24  

Additional Information
 Earth MOID = 1.69505 au 
 Jupiter MOID = 2.13416 au 
 T_jup = 3.218 
[ 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 13.08   n/a E2021B10  
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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