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JPL Small-Body Database Browser
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226789 (2004 RZ172)
Classification: Main-belt Asteroid          SPK-ID: 2226789
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02954964184459616 4.4479e-08  
a 2.770746071124742 2.8692e-08 au
q 2.688871517080683 1.2668e-07 au
i 4.480359326889615 4.8387e-06 deg
node 230.3413760987709 7.7389e-05 deg
peri 356.5888230048372 0.00013222 deg
M 177.034131707025 0.00010863 deg
tp 2457772.084873202755
(2017-Jan-18.58487320)		 0.00050797 TDB
period 1684.587275749459
4.61		 2.6167e-05
7.164e-08		 d
yr
n .2137021958923672 3.3195e-09 deg/d
Q 2.8526206251688 2.954e-08 au
   Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      8401 days (23.00 yr)  
   first obs. used      1995-10-18  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52771  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:00:42  

Additional Information
 Earth MOID = 1.67846 au 
 Jupiter MOID = 2.12433 au 
 T_jup = 3.332 
[ 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 15.9   n/a MPO418210  
diameter diameter 3.696 km 0.824 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226789 (2004 RZ172)          Discovered 2004-Sep-09 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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