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216475 (1999 RD110)
Classification: Main-belt Asteroid          SPK-ID: 2216475
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2432311516768892 6.0512e-08  
a 3.08971012215999 2.9942e-08 au
q 2.338196370799274 1.9454e-07 au
i 14.27649670225612 7.2967e-06 deg
node 221.2146257578524 2.3667e-05 deg
peri 110.6344264084573 2.7004e-05 deg
M 353.2493632154319 1.476e-05 deg
tp 2459237.697801380041
(2021-Jan-23.19780138)
8.1643e-05 TDB
period 1983.695601491536
5.43
2.8835e-05
7.895e-08
d
yr
n .1814794566914989 2.638e-09 deg/d
Q 3.841223873520707 3.7225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:57  

Additional Information
 Earth MOID = 1.37279 au 
 Jupiter MOID = 1.92273 au 
 T_jup = 3.133 
[ 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 15.22   n/a E2021B55  
diameter diameter 3.815 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.121   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216475 (1999 RD110)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 1999 RD110 = 2003 HK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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