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117909 (4123 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117909
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .287281593595222 6.4486e-08  
a 2.54855276571801 1.1216e-08 au
q 1.81640046582103 1.6962e-07 au
i 12.22948901483544 6.5583e-06 deg
node 192.0369859745514 1.3404e-05 deg
peri 146.9542103075904 1.5238e-05 deg
M 244.625665027894 5.5298e-06 deg
tp 2459476.761616213687
(2021-Sep-19.26161621)
2.3153e-05 TDB
period 1486.068646708816
4.07
9.8102e-06
2.686e-08
d
yr
n .2422499127461502 1.5992e-09 deg/d
Q 3.280705065614991 1.4438e-08 au
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      21793 days (59.67 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:15:25  

Additional Information
 Earth MOID = .821859 au 
 Jupiter MOID = 2.2096 au 
 T_jup = 3.352 
[ 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 16.0   n/a MPO276225  
diameter diameter 3.461 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117909 (4123 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 4123 P-L = 2001 UJ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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