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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .00809799006274047 4.8799e-08  
a 3.062858737641639 2.0481e-08 au
q 3.038055738020639 1.4931e-07 au
i 8.617387038171255 5.835e-06 deg
node 210.2018949221495 2.8511e-05 deg
peri 314.6247060842799 0.00030447 deg
M 77.46927466206733 0.00030139 deg
tp 2458579.176322219632
(2019-Apr-05.67632222)
0.0016401 TDB
period 1957.892656960692
5.36
1.9639e-05
5.377e-08
d
yr
n .1838711630691956 1.8443e-09 deg/d
Q 3.087661737262639 2.0647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      10755 days (29.45 yr)  
   first obs. used      1990-11-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55914  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:47:31  

Additional Information
 Earth MOID = 2.04032 au 
 Jupiter MOID = 1.88286 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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