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JPL Small-Body Database Browser
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109493 (2001 QM228)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109493
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04015199509963836 3.878e-08  
a 3.247726087183338 3.219e-08 au
q 3.117323405245784 1.2666e-07 au
i 21.762099535862 5.8551e-06 deg
node 181.8462662451658 1.1507e-05 deg
peri 95.0295129458152 7.8722e-05 deg
M 63.98410556755626 8.0464e-05 deg
tp 2458220.540663961911
(2018-Apr-12.04066396)
0.00047643 TDB
period 2137.802189471729
5.85
3.1783e-05
8.702e-08
d
yr
n .1683972454387651 2.5036e-09 deg/d
Q 3.37812876912089 3.3483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      8801 days (24.10 yr)  
   first obs. used      1995-09-24  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:52:34  

Additional Information
 Earth MOID = 2.18249 au 
 Jupiter MOID = 1.71044 au 
 T_jup = 3.068 
[ 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 14.7   n/a MPO453555  
diameter diameter 6.358 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109493 (2001 QM228)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QM228 = 1995 SP36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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