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172249 (2002 RG226)
Classification: Main-belt Asteroid          SPK-ID: 2172249
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779958284825959 4.6921e-08  
a 2.667222032058932 1.5773e-08 au
q 2.19246763671557 1.237e-07 au
i 3.278424590092288 5.6878e-06 deg
node 123.9841620307822 8.9983e-05 deg
peri 156.9248686029509 9.1667e-05 deg
M 80.96035093634165 1.5647e-05 deg
tp 2458642.686219153820
(2019-Jun-08.18621915)
6.8609e-05 TDB
period 1591.06228684593
4.36
1.4114e-05
3.864e-08
d
yr
n .2262639262939556 2.0071e-09 deg/d
Q 3.141976427402295 1.8581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      2000-01-07  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:40:00  

Additional Information
 Earth MOID = 1.17646 au 
 Jupiter MOID = 2.00283 au 
 T_jup = 3.358 
[ 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 16.1   n/a MPO493964  
diameter diameter 3.672 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172249 (2002 RG226)          Discovered 2002-Sep-13 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2002 RG226 = 2006 QB91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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