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245868 (2006 PJ21)
Classification: Main-belt Asteroid          SPK-ID: 2245868
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1252340269582774 9.5213e-08  
a 3.091983683130751 4.2041e-08 au
q 2.704762115203001 2.9361e-07 au
i 26.87834393494993 1.1179e-05 deg
node 323.9093548057331 1.1311e-05 deg
peri 331.8710750876037 3.5016e-05 deg
M 212.2305147047714 3.6773e-05 deg
tp 2459815.648017839918
(2022-Aug-24.14801784)
0.00020786 TDB
period 1985.885555709151
5.44
4.0503e-05
1.109e-07
d
yr
n .1812793284915381 3.6972e-09 deg/d
Q 3.479205251058501 4.7306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      6708 days (18.37 yr)  
   first obs. used      2001-09-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:47:04  

Additional Information
 Earth MOID = 1.70938 au 
 Jupiter MOID = 1.89848 au 
 T_jup = 3.047 
[ show covariance matrix ]

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 15.0   n/a MPO418313  
diameter diameter 5.886 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245868 (2006 PJ21)          Discovered 2006-Aug-15 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 2006 PJ21 = 2001 SQ343 = 2004 BT30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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