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JPL Small-Body Database Browser
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32640 (2531 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2032640
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .222621345123434 4.4914e-08  
a 2.555196862340434 8.6873e-09 au
q 1.986355499791028 1.1821e-07 au
i 6.790134053440317 4.6813e-06 deg
node 182.6796753416029 2.6055e-05 deg
peri 184.7106742216949 2.7202e-05 deg
M 119.2847971225541 8.8524e-06 deg
tp 2458106.169313871702
(2017-Dec-18.66931387)		 3.5061e-05 TDB
period 1491.883721136324
4.08		 7.6083e-06
2.083e-08		 d
yr
n .2413056694028397 1.2306e-09 deg/d
Q 3.124038224889839 1.0621e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      21375 days (58.52 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:32:50  

Additional Information
 Earth MOID = .984375 au 
 Jupiter MOID = 2.33468 au 
 T_jup = 3.393 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456207.5 (2012-Oct-07.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .220270893890988 4.4635e-08  
q 1.99389552112147 1.1724e-07 au
tp 2456611.184117203693
(2013-Nov-14.68411720)		 3.1648e-05 TDB
node 182.7900193698138 2.6137e-05 deg
peri 184.2901164803172 2.7315e-05 deg
i 6.774141100476921 4.6736e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      21375 days (58.52 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:32:50  

Additional Information
 Jupiter MOID = 2.33468 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.992281788137688E-15 -5.226498399289214E-15 -5.261212712634614E-13 1.016654700708197E-14 -1.209202930286108E-13 -1.387327734398941E-15
q -5.226498399289214E-15 1.374617262809374E-14 1.441720646523792E-12 -2.59273987355364E-14 3.277577810349161E-13 3.62930982844556E-15
tp -5.261212712634614E-13 1.441720646523792E-12 1.001586402265667E-9 -3.207697953149496E-12 2.559290147074997E-10 6.668658888820071E-13
node 1.016654700708197E-14 -2.59273987355364E-14 -3.207697953149496E-12 6.831670947832864E-10 -6.78789384225028E-10 -1.192919008397646E-11
peri -1.209202930286108E-13 3.277577810349161E-13 2.559290147074997E-10 -6.78789384225028E-10 7.460819187080099E-10 1.196110049834961E-11
i -1.387327734398941E-15 3.62930982844556E-15 6.668658888820071E-13 -1.192919008397646E-11 1.196110049834961E-11 2.184207747131888E-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 14.5   n/a MPO365639  

32640 (2531 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2531 P-L = 1968 QQ1 = 2000 LZ30 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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