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JPL Small-Body Database Browser
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34357 (2000 RO21)
Classification: Main-belt Asteroid          SPK-ID: 2034357
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008169871566662476 5.6567e-08  
a 3.062000083183861 2.2575e-08 au
q 3.036983935767139 1.7789e-07 au
i 8.6187721247613 6.0757e-06 deg
node 210.2061923019368 3.0992e-05 deg
peri 311.505619787559 0.00031717 deg
M 6.979288400990767 0.00031345 deg
tp 2458562.558467535206
(2019-Mar-20.05846754)
0.0017041 TDB
period 1957.0693891066
5.36
2.1643e-05
5.926e-08
d
yr
n .1839485109745341 2.0343e-09 deg/d
Q 3.087016230600582 2.2759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      10384 days (28.43 yr)  
   first obs. used      1990-11-17  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:41:38  

Additional Information
 Earth MOID = 2.04052 au 
 Jupiter MOID = 1.88541 au 
 T_jup = 3.216 
[ 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 14.3   n/a MPO436004  
diameter diameter 4.482 km 0.624 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34357 (2000 RO21)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 RO21 = 1998 HK29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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