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20560 (1999 RX118)
Classification: Main-belt Asteroid          SPK-ID: 2020560
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485408537674091 4.4435e-08  
a 2.693972239575375 1.1317e-08 au
q 2.024410079125612 1.2134e-07 au
i 12.02843655523245 4.9833e-06 deg
node 195.8074083269492 1.5587e-05 deg
peri 202.2762242105458 1.6686e-05 deg
M 204.0429030535096 6.5819e-06 deg
tp 2459700.165956075012
(2022-Apr-30.66595607)
3.1536e-05 TDB
period 1615.057917328542
4.42
1.0177e-05
2.786e-08
d
yr
n .2229022229713432 1.4046e-09 deg/d
Q 3.363534400025137 1.413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1810  
   data-arc span      23706 days (64.90 yr)  
   first obs. used      1955-10-11  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45656  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:02:06  

Additional Information
 Earth MOID = 1.0361 au 
 Jupiter MOID = 2.08813 au 
 T_jup = 3.295 
[ 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 13.7   n/a MPO384930  
diameter diameter 10.923 km 2.975 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.059   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

20560 (1999 RX118)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RX118 = 1955 TM = 1986 RX10 = 1998 KB49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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