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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605252714612466 3.2998e-08  
a 2.677336024770473 1.3749e-08 au
q 2.247555932601218 8.9029e-08 au
i 10.566922777485 4.6935e-06 deg
node 21.63023122006924 2.2056e-05 deg
peri 256.9717019273889 2.7171e-05 deg
M 253.3529988876793 1.7753e-05 deg
tp 2459474.522434370122
(2021-Sep-17.02243437)
8.0305e-05 TDB
period 1600.120721571133
4.38
1.2326e-05
3.375e-08
d
yr
n .2249830248098542 1.733e-09 deg/d
Q 3.107116116939728 1.5956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1644  
   data-arc span      8549 days (23.41 yr)  
   first obs. used      1996-12-02  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:55:52  

Additional Information
 Earth MOID = 1.26033 au 
 Jupiter MOID = 2.1026 au 
 T_jup = 3.335 
[ 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 13.6   n/a MPO279713  
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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