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30646 (6623 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07430457866688134 4.3169e-08  
a 2.399534565184445 9.0927e-09 au
q 2.221238160321796 1.0477e-07 au
i 6.154252057764959 5.5771e-06 deg
node 10.31628790552375 4.22e-05 deg
peri 60.45482962580473 5.625e-05 deg
M 9.905765458768084 3.6586e-05 deg
tp 2459163.142785812947
(2020-Nov-09.64278581)
0.00013794 TDB
period 1357.653496170262
3.72
7.717e-06
2.113e-08
d
yr
n .2651633874294923 1.5072e-09 deg/d
Q 2.577830970047093 9.7684e-09 au
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      22056 days (60.39 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:52  

Additional Information
 Earth MOID = 1.24181 au 
 Jupiter MOID = 2.59943 au 
 T_jup = 3.515 
[ 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 15.36   n/a MPCxxxxx  
diameter diameter 4.217 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30646 (6623 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 6623 P-L = 1999 CC87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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