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117923 (4660 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117923
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815187436762742 5.1046e-08  
a 2.458865746877668 1.2794e-08 au
q 2.01253552563581 1.2068e-07 au
i 5.74619807926144 5.0801e-06 deg
node 9.127161534555249 3.3101e-05 deg
peri 310.67309494 3.592e-05 deg
M 201.9967766253828 1.6459e-05 deg
tp 2459618.607621537755
(2022-Feb-08.10762154)
6.7654e-05 TDB
period 1408.317748214615
3.86
1.0991e-05
3.009e-08
d
yr
n .2556241306029038 1.9951e-09 deg/d
Q 2.905195968119525 1.5116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      21766 days (59.59 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:15:45  

Additional Information
 Earth MOID = 1.00564 au 
 Jupiter MOID = 2.42387 au 
 T_jup = 3.461 
[ 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 15.6   n/a MPO459556  

117923 (4660 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
 4660 P-L = 2003 WE121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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