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JPL Small-Body Database Browser
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312657 (2010 KW78)
Classification: Main-belt Asteroid          SPK-ID: 2312657
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .239842822506515 8.0227e-08  
a 3.115816672446686 6.2041e-08 au
q 2.368510407314215 2.7069e-07 au
i 9.533073339820133 8.7698e-06 deg
node 148.4946071521578 4.8394e-05 deg
peri 174.2084173704276 5.1139e-05 deg
M 216.0275962248017 2.3179e-05 deg
tp 2459403.902219357690
(2021-Jul-08.40221936)
0.00014698 TDB
period 2008.890533080009
5.50
6e-05
1.643e-07
d
yr
n .1792033931525636 5.3523e-09 deg/d
Q 3.863122937579157 7.6921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      7152 days (19.58 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62281  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:34:20  

Additional Information
 Earth MOID = 1.35561 au 
 Jupiter MOID = 1.49632 au 
 T_jup = 3.152 
[ 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 15.7   n/a MPO434004  
diameter diameter 3.999 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312657 (2010 KW78)          Discovered 2010-May-25 by WISE at WISE
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2010 KW78 = 1999 RK72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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