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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457180.5 (2015-Jun-07.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1616689564490999 1.7112e-08  
q 2.244501864674471 4.9736e-08 au
tp 2457871.698483459641
(2017-Apr-28.19848346)
4.1764e-05 TDB
node 21.70885586725457 8.1395e-06 deg
peri 256.5361694364232 1.0256e-05 deg
i 10.56047601962031 7.9195e-07 deg
  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
 Jupiter MOID = 2.10173 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.928090831598523E-16 -8.342274703699579E-16 -3.687703743700111E-13 2.536744360186381E-14 -7.805539997273696E-14 -1.275469810790337E-15
q -8.342274703699579E-16 2.473664657805122E-15 1.054983072762774E-12 -6.83997103901588E-14 2.114331705155069E-13 3.576831985834284E-15
tp -3.687703743700111E-13 1.054983072762774E-12 1.744223541102791E-9 2.246480842433861E-11 2.766844620033211E-10 6.760625157847147E-13
node 2.536744360186381E-14 -6.83997103901588E-14 2.246480842433861E-11 6.625209117050476E-11 -5.912691191691278E-11 -1.221129985311574E-12
peri -7.805539997273696E-14 2.114331705155069E-13 2.766844620033211E-10 -5.912691191691278E-11 1.051811900004723E-10 1.19208412574341E-12
i -1.275469810790337E-15 3.576831985834284E-15 6.760625157847147E-13 -1.221129985311574E-12 1.19208412574341E-12 6.271797929042651E-13

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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