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109531 (2001 QP248)
Classification: Main-belt Asteroid          SPK-ID: 2109531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822001569595604 3.7238e-08  
a 2.418146720428281 9.8269e-09 au
q 1.977560008415002 9.073e-08 au
i 3.727195785250698 6.8023e-06 deg
node 40.0009750291872 7.8161e-05 deg
peri 44.84663800859767 8.1367e-05 deg
M 301.137989295304 2.1832e-05 deg
tp 2459225.071681852582
(2021-Jan-10.57168185)
8.3756e-05 TDB
period 1373.48018694984
3.76
8.3723e-06
2.292e-08
d
yr
n .2621078945444935 1.5977e-09 deg/d
Q 2.85873343244156 1.1617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      809  
   data-arc span      7833 days (21.45 yr)  
   first obs. used      1999-02-20  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:34:24  

Additional Information
 Earth MOID = .995691 au 
 Jupiter MOID = 2.37007 au 
 T_jup = 3.490 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO432617  
diameter diameter 2.007 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.365   0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109531 (2001 QP248)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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