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52230 (1978 NR)
Classification: Main-belt Asteroid          SPK-ID: 2052230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358294574163576 3.71e-08  
a 2.429347780166026 1.1558e-08 au
q 2.099370789310442 9.3575e-08 au
i 6.872698389882768 6.1519e-06 deg
node 305.6253867824207 3.6992e-05 deg
peri 312.2781370614662 4.6032e-05 deg
M 306.0151491686897 2.5361e-05 deg
tp 2458807.896952070474
(2019-Nov-20.39695207)
9.7303e-05 TDB
period 1383.034343813861
3.79
9.8704e-06
2.702e-08
d
yr
n .2602972237169921 1.8577e-09 deg/d
Q 2.75932477102161 1.3128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      844  
   data-arc span      14901 days (40.80 yr)  
   first obs. used      1978-07-10  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5748  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:05:09  

Additional Information
 Earth MOID = 1.09084 au 
 Jupiter MOID = 2.33495 au 
 T_jup = 3.486 
[ 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 15.2   n/a MPO337675  
diameter diameter 2.794 km 0.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52230 (1978 NR)          Discovered 1978-Jul-10 by Helin, E. F., Shoemaker, E. M. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 NR = 2000 EJ200 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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