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109495 (2001 QX228)
Classification: Main-belt Asteroid          SPK-ID: 2109495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08924347245426885 4.7965e-08  
a 3.094376105701861 2.3369e-08 au
q 2.818223236949509 1.4968e-07 au
i 7.682067405193098 4.8193e-06 deg
node 222.1750582262102 4.0253e-05 deg
peri 93.42855025972675 4.854e-05 deg
M 181.9647043560057 2.7637e-05 deg
tp 2459983.744859325188
(2023-Feb-08.24485933)
0.00015477 TDB
period 1988.19087011193
5.44
2.2523e-05
6.166e-08
d
yr
n .1810691344638017 2.0512e-09 deg/d
Q 3.370528974454212 2.5455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      8513 days (23.31 yr)  
   first obs. used      1996-10-05  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:26:39  

Additional Information
 Earth MOID = 1.81865 au 
 Jupiter MOID = 1.88308 au 
 T_jup = 3.204 
[ 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 14.8   n/a MPO432617  
diameter diameter 4.251 km 0.646 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.117   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109495 (2001 QX228)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QX228 = 2002 XM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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