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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605352464225048 1.7558e-08  
a 2.676793442288966 1.3028e-08 au
q 2.247073747408962 5.1698e-08 au
i 10.56805713201972 7.9365e-07 deg
node 21.62680203327393 8.1585e-06 deg
peri 257.0478096329371 1.0616e-05 deg
M 298.2821768186773 1.1022e-05 deg
tp 2459474.738746703458
(2021-Sep-17.23874670)
4.9886e-05 TDB
period 1599.634331288628
4.38
1.1678e-05
3.197e-08
d
yr
n .2250514339173956 1.6429e-09 deg/d
Q 3.10651313716897 1.5119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1844  
   data-arc span      8876 days (24.30 yr)  
   first obs. used      1996-12-02  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45297  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:50:22  

Additional Information
 Earth MOID = 1.25812 au 
 Jupiter MOID = 2.10256 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 13.60   n/a MPCxxxxx  
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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