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172222 (2002 RH60)
Classification: Main-belt Asteroid          SPK-ID: 2172222
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2340718175453239 6.149e-08  
a 2.720449612244176 2.427e-08 au
q 2.08366902696571 1.7753e-07 au
i 3.178360374587049 5.657e-06 deg
node 72.80746311791793 0.00012281 deg
peri 249.5127901890879 0.00012365 deg
M 5.86787651785516 2.0029e-05 deg
tp 2458973.786061503979
(2020-May-04.28606150)
9.0962e-05 TDB
period 1638.926420708461
4.49
2.1932e-05
6.005e-08
d
yr
n .2196559866576453 2.9395e-09 deg/d
Q 3.357230197522641 2.9951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      6123 days (16.76 yr)  
   first obs. used      2002-08-05  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:15  

Additional Information
 Earth MOID = 1.07379 au 
 Jupiter MOID = 1.98332 au 
 T_jup = 3.316 
[ 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 15.5   n/a MPO436856  
diameter diameter 2.922 km 0.864 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172222 (2002 RH60)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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