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18981 (2000 RT3)
Classification: Main-belt Asteroid          SPK-ID: 2018981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605675027684711 1.7106e-08  
a 2.676635429863992 1.2199e-08 au
q 2.246854763069118 4.9647e-08 au
i 10.56837721312891 7.9256e-07 deg
node 21.62692407746002 8.1245e-06 deg
peri 257.0914191418386 1.0317e-05 deg
M 342.3615270243005 1.0136e-05 deg
tp 2459474.868357313836
(2021-Sep-17.36835731)
4.5236e-05 TDB
period 1599.49269258452
4.38
1.0935e-05
2.994e-08
d
yr
n .2250713627320788 1.5387e-09 deg/d
Q 3.106416096658867 1.4158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1946  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1996-12-02  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:44:36  

Additional Information
 Earth MOID = 1.25952 au 
 Jupiter MOID = 2.10173 au 
 T_jup = 3.336 
[ 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 13.61   n/a MPO614063  
diameter diameter 4.405 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.397   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18981 (2000 RT3)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 RT3 = 1996 XO10 = 1999 JB34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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