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JPL Small-Body Database Browser
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487777 (2015 RR220)
Classification: Main-belt Asteroid          SPK-ID: 2487777
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2072968543904749 5.5535e-07  
a 2.793618597765664 7.0491e-08 au
q 2.214510250082112 1.5747e-06 au
i 9.749991427912322 1.3402e-05 deg
node 26.86315029812687 3.796e-05 deg
peri 333.1072218395598 9.0225e-05 deg
M 283.2261195162753 5.0704e-05 deg
tp 2458964.214058699419
(2020-Apr-24.71405870)
0.00024751 TDB
period 1705.489683559086
4.67
6.4552e-05
1.767e-07
d
yr
n .2110830710208327 7.9894e-09 deg/d
Q 3.372726945449215 8.5104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5137 days (14.06 yr)  
   first obs. used      2003-01-29  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71782  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:40:09  

Additional Information
 Earth MOID = 1.21618 au 
 Jupiter MOID = 2.09285 au 
 T_jup = 3.276 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO456352  
diameter diameter 2.395 km 0.887 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

487777 (2015 RR220)          Discovered 2010-Apr-29 by WISE at WISE
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 RR220 = 2010 HW93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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