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JPL Small-Body Database Browser
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20916 (4628 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1472604675601486 5.6326e-08  
a 3.152734235626182 2.1223e-08 au
q 2.688461117994983 1.774e-07 au
i 6.114042155594181 6.2571e-06 deg
node 18.60112911448352 4.2787e-05 deg
peri 19.00174373819502 4.6628e-05 deg
M 135.1987292301098 1.8487e-05 deg
tp 2457832.608995820317
(2017-Mar-20.10899582)
0.00010177 TDB
period 2044.699407153306
5.60
2.0646e-05
5.653e-08
d
yr
n .1760649994520237 1.7778e-09 deg/d
Q 3.617007353257381 2.4348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      21403 days (58.60 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54762  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:47:03  

Additional Information
 Earth MOID = 1.6959 au 
 Jupiter MOID = 1.82901 au 
 T_jup = 3.181 
[ 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 14.5   n/a MPO309318  
diameter diameter 7.644 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20916 (4628 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4628 P-L = 1983 VU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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