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437910 (2002 AU31)
Classification: Main-belt Asteroid          SPK-ID: 2437910
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2480084871102944 9.2446e-08  
a 2.646608410454504 1.8268e-08 au
q 1.990227062604301 2.4688e-07 au
i 35.03784988551839 1.2993e-05 deg
node 126.4988254030749 8.4034e-06 deg
peri 333.3811476014353 2.1486e-05 deg
M 107.1858952505283 1.6561e-05 deg
tp 2458532.260445197628
(2019-Feb-17.76044520)
7.0593e-05 TDB
period 1572.653186642325
4.31
1.6283e-05
4.458e-08
d
yr
n .2289125174308862 2.3701e-09 deg/d
Q 3.302989758304706 2.2799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6702 days (18.35 yr)  
   first obs. used      2001-12-23  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48019  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:44:39  

Additional Information
 Earth MOID = 1.03264 au 
 Jupiter MOID = 1.89568 au 
 T_jup = 3.097 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457245.5 (2015-Aug-11.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .248690007425754 9.2565e-08  
q 1.988365099243741 2.476e-07 au
tp 2456960.438186033170
(2014-Oct-29.93818603)
6.6804e-05 TDB
node 126.5101524880399 8.4019e-06 deg
peri 333.5327780027642 2.1373e-05 deg
i 35.04339085845832 1.2995e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6702 days (18.35 yr)  
   first obs. used      2001-12-23  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48019  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:44:39  

Additional Information
 Jupiter MOID = 1.89568 au 
 T_jup = 3.097 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.568239248213623E-15 -2.288426310980304E-14 3.103669133628455E-12 -3.018812023545616E-14 5.717835675892661E-13 -1.652835395474933E-13
q -2.288426310980304E-14 6.130465192690734E-14 -8.150393064333125E-12 8.051129923596304E-14 -1.482658380572253E-12 4.417842712800155E-13
tp 3.103669133628455E-12 -8.150393064333125E-12 4.462782593218424E-9 -9.681899281976849E-12 1.29310071208334E-9 -1.069755425765473E-10
node -3.018812023545616E-14 8.051129923596304E-14 -9.681899281976849E-12 7.059266843673862E-11 -5.830217420142275E-11 1.715735248420802E-11
peri 5.717835675892661E-13 -1.482658380572253E-12 1.29310071208334E-9 -5.830217420142275E-11 4.568154249853976E-10 -3.959807379648535E-11
i -1.652835395474933E-13 4.417842712800155E-13 -1.069755425765473E-10 1.715735248420802E-11 -3.959807379648535E-11 1.688645731249449E-10

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 16.2   n/a MPO339607  

437910 (2002 AU31)          Discovered 2001-Dec-23 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-07-06

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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