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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822001324542664 3.7542e-08  
a 2.41814672350338 1.093e-08 au
q 1.977560070187214 9.1053e-08 au
i 3.727190131726809 6.8144e-06 deg
node 40.0009970351165 8.1239e-05 deg
peri 44.84661913995159 8.4624e-05 deg
M 301.137981987996 2.3602e-05 deg
tp 2459225.071710159963
(2021-Jan-10.57171016)
9.073e-05 TDB
period 1373.480189569773
3.76
9.312e-06
2.549e-08
d
yr
n .2621078940445191 1.777e-09 deg/d
Q 2.858733376819547 1.2921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      7497 days (20.53 yr)  
   first obs. used      1999-02-20  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:11:31  

Additional Information
 Earth MOID = .995691 au 
 Jupiter MOID = 2.37007 au 
 T_jup = 3.490 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456384.5 (2013-Apr-02.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819469124556579 3.7747e-08  
q 1.978947567650357 9.167e-08 au
tp 2456474.192367518851
(2013-Jun-30.69236752)
8.4142e-05 TDB
node 40.11133090353439 8.0976e-05 deg
peri 44.26725319016014 8.443e-05 deg
i 3.734309933726599 6.8253e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      7497 days (20.53 yr)  
   first obs. used      1999-02-20  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:11:31  

Additional Information
 Jupiter MOID = 2.37007 au 
 T_jup = 3.490 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.424815550412996E-15 -3.443573068089369E-15 -1.140900857118314E-12 6.700282431445596E-15 -3.568378599440974E-13 -4.979891310930295E-17
q -3.443573068089369E-15 8.403302772972847E-15 2.974196696633868E-12 -1.800458516532632E-14 9.212958260887647E-13 2.073989721506373E-16
tp -1.140900857118314E-12 2.974196696633868E-12 7.079886851238951E-9 -1.953080728129809E-11 2.037229221479483E-9 -4.085693429080968E-12
node 6.700282431445596E-15 -1.800458516532632E-14 -1.953080728129809E-11 6.557186574516488E-9 -6.548345008387267E-9 -2.986437814402044E-10
peri -3.568378599440974E-13 9.212958260887647E-13 2.037229221479483E-9 -6.548345008387267E-9 7.128354532534988E-9 2.969128043332472E-10
i -4.979891310930295E-17 2.073989721506373E-16 -4.085693429080968E-12 -2.986437814402044E-10 2.969128043332472E-10 4.658438663238163E-11

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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