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136772 (1996 RK20)
Classification: Main-belt Asteroid          SPK-ID: 2136772
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04809429825412443 3.8173e-08  
a 2.775360906506982 1.9485e-08 au
q 2.641881871306598 1.1221e-07 au
i 1.640399319703725 4.8602e-06 deg
node 118.3359705575784 0.00016397 deg
peri 315.4244362355381 0.00017353 deg
M 323.382251352405 5.7896e-05 deg
tp 2459172.277692761716
(2020-Nov-18.77769276)
0.00027205 TDB
period 1688.797691779429
4.62
1.7785e-05
4.869e-08
d
yr
n .2131694055198999 2.2449e-09 deg/d
Q 2.908839941707366 2.0422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      8444 days (23.12 yr)  
   first obs. used      1996-09-14  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:04:50  

Additional Information
 Earth MOID = 1.65699 au 
 Jupiter MOID = 2.21251 au 
 T_jup = 3.333 
[ 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 16.2   n/a MPO449766  
diameter diameter 4.070 km 1.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136772 (1996 RK20)          Discovered 1996-Sep-14 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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