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JPL Small-Body Database Browser
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20101 (1994 XM2)
Classification: Main-belt Asteroid          SPK-ID: 2020101
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04357953577227121 3.8673e-08  
a 3.13790834602347 2.0419e-08 au
q 3.001159757007832 1.2525e-07 au
i 8.495688466884243 4.2139e-06 deg
node 84.30792794149708 2.9975e-05 deg
peri 246.1608286444561 5.9677e-05 deg
M 223.2520989110306 5.3276e-05 deg
tp 2459371.717679288513
(2021-Jun-06.21767929)
0.00030263 TDB
period 2030.293425587794
5.56
1.9818e-05
5.426e-08
d
yr
n .1773142716530128 1.7308e-09 deg/d
Q 3.274656935039109 2.1309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1647  
   data-arc span      8928 days (24.44 yr)  
   first obs. used      1994-12-01  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49751  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:49:01  

Additional Information
 Earth MOID = 2.00094 au 
 Jupiter MOID = 1.90591 au 
 T_jup = 3.193 
[ 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 12.8   n/a MPO474030  
diameter diameter 19.459 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20101 (1994 XM2)          Discovered 1994-Dec-01 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 XM2 = 1999 RG35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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