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JPL Small-Body Database Browser
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201213 (2002 QZ31)
Classification: Main-belt Asteroid          SPK-ID: 2201213
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451980514427062 4.62e-08  
a 3.07249940759227 2.5876e-08 au
q 2.626378480551003 1.4074e-07 au
i 11.82618320108551 4.6614e-06 deg
node 133.7013060420484 2.6458e-05 deg
peri 255.1455091682291 3.1918e-05 deg
M 62.8255774067107 1.6866e-05 deg
tp 2458657.202906467651
(2019-Jun-22.70290647)
9.2353e-05 TDB
period 1967.143936801202
5.39
2.4851e-05
6.804e-08
d
yr
n .1830064355053756 2.3119e-09 deg/d
Q 3.518620334633537 2.9633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2002-08-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:59:15  

Additional Information
 Earth MOID = 1.66119 au 
 Jupiter MOID = 2.07918 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457691.5 (2016-Oct-30.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434474409198495 4.6044e-08  
q 2.633392045747668 1.3984e-07 au
tp 2458657.433781296205
(2019-Jun-22.93378130)
9.3817e-05 TDB
node 133.771154069475 2.6453e-05 deg
peri 254.8627191401978 3.2095e-05 deg
i 11.82372036118355 4.6595e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2002-08-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:59:15  

Additional Information
 Jupiter MOID = 2.07918 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.120028342987485E-15 -6.357246450105611E-15 9.230447260525893E-13 -8.581937698754156E-15 1.270070282210666E-13 -4.045555974035265E-15
q -6.357246450105611E-15 1.955619498849712E-14 -3.033977814019119E-12 2.05374405433368E-14 -4.788154505772205E-13 1.428754773633228E-14
tp 9.230447260525893E-13 -3.033977814019119E-12 8.801637490694986E-9 -1.285104583684487E-11 1.732835490386098E-9 -1.293487636136584E-11
node -8.581937698754156E-15 2.05374405433368E-14 -1.285104583684487E-11 6.997774165141754E-10 -6.869997653959282E-10 -2.021155362737504E-11
peri 1.270070282210666E-13 -4.788154505772205E-13 1.732835490386098E-9 -6.869997653959282E-10 1.03010451283848E-9 1.733620525013105E-11
i -4.045555974035265E-15 1.428754773633228E-14 -1.293487636136584E-11 -2.021155362737504E-11 1.733620525013105E-11 2.171072581781707E-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 15.0   n/a MPO418071  

201213 (2002 QZ31)          Discovered 2002-Aug-29 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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