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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360111259057106 2.6135e-08  
a 2.429057090330876 9.0262e-09 au
q 2.098678300585724 6.2287e-08 au
i 6.874620845069505 5.0979e-06 deg
node 305.6123331137425 3.5267e-05 deg
peri 311.9407229490163 4.2759e-05 deg
M 102.4799934770797 2.3867e-05 deg
tp 2458806.866910853762
(2019-Nov-19.36691085)
9.1328e-05 TDB
period 1382.786115461061
3.79
7.7075e-06
2.11e-08
d
yr
n .2603439505031229 1.4511e-09 deg/d
Q 2.759435880076028 1.0254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1164  
   data-arc span      15557 days (42.59 yr)  
   first obs. used      1978-07-10  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52925  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:43  

Additional Information
 Earth MOID = 1.08893 au 
 Jupiter MOID = 2.33335 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 15.29   n/a E2021B10  
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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