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79588 (1998 RJ18)
Classification: Main-belt Asteroid          SPK-ID: 2079588
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09656705762179936 4.0698e-08  
a 2.336108573240884 9.3837e-09 au
q 2.110517442037952 9.6039e-08 au
i 5.319867487495704 4.0079e-06 deg
node 295.9989571912761 4.8202e-05 deg
peri 92.47381621053813 5.2852e-05 deg
M 350.0478445139757 2.2893e-05 deg
tp 2459036.553930189296
(2020-Jul-06.05393019)
8.3006e-05 TDB
period 1304.181278756492
3.57
7.858e-06
2.151e-08
d
yr
n .2760352459155464 1.6632e-09 deg/d
Q 2.561699704443816 1.029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1998-08-26  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54956  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:47:41  

Additional Information
 Earth MOID = 1.12318 au 
 Jupiter MOID = 2.80828 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456324.5 (2013-Feb-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09683039036251553 4.0879e-08  
q 2.109902775994677 9.6468e-08 au
tp 2456427.219799421046
(2013-May-14.71979942)
7.8349e-05 TDB
node 296.0866082719124 4.8272e-05 deg
peri 92.37748156334195 5.2828e-05 deg
i 5.315786409677616 4.0046e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1998-08-26  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54956  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:47:41  

Additional Information
 Jupiter MOID = 2.80828 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.671054284677587E-15 -3.9282647653587E-15 -7.064530691269999E-13 4.79674229757566E-15 -2.240152276466042E-13 2.803384828633116E-18
q -3.9282647653587E-15 9.306156469287272E-15 1.752003910690082E-12 -1.057135861551527E-14 5.474729304161906E-13 1.62717383999328E-16
tp -7.064530691269999E-13 1.752003910690082E-12 6.138595709582893E-9 -2.869420306965373E-12 1.70089861908195E-9 9.454474399800167E-14
node 4.79674229757566E-15 -1.057135861551527E-14 -2.869420306965373E-12 2.330214008886232E-9 -2.320765329217606E-9 3.010450907622691E-11
peri -2.240152276466042E-13 5.474729304161906E-13 1.70089861908195E-9 -2.320765329217606E-9 2.790820346440163E-9 -2.99716427673171E-11
i 2.803384828633116E-18 1.62717383999328E-16 9.454474399800167E-14 3.010450907622691E-11 -2.99716427673171E-11 1.603674252915107E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO436337  
diameter diameter 2.123 km 0.369 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.392   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79588 (1998 RJ18)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 RJ18 = 2000 CC102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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