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101988 (1999 RG64)
Classification: Main-belt Asteroid          SPK-ID: 2101988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971502560200857 4.7185e-08  
a 3.122446587620779 2.2206e-08 au
q 2.506855443462299 1.5064e-07 au
i 6.068264269972975 4.0224e-06 deg
node 124.1609015110412 5.2682e-05 deg
peri 251.2892761275051 5.3676e-05 deg
M 249.1321512484773 1.3559e-05 deg
tp 2459621.146161739180
(2022-Feb-10.64616174)
8.0036e-05 TDB
period 2015.305796424919
5.52
2.1498e-05
5.886e-08
d
yr
n .178632940290564 1.9056e-09 deg/d
Q 3.738037731779258 2.6584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      7650 days (20.94 yr)  
   first obs. used      1999-08-08  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:20  

Additional Information
 Earth MOID = 1.51609 au 
 Jupiter MOID = 1.75966 au 
 T_jup = 3.177 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457276.5 (2015-Sep-11.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978919641077648 4.7232e-08  
q 2.504298100907743 1.5076e-07 au
tp 2457609.576380810544
(2016-Aug-09.07638081)
6.7853e-05 TDB
node 124.1825886711212 5.2706e-05 deg
peri 251.7236292504585 5.3689e-05 deg
i 6.067528633445232 4.0218e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      7650 days (20.94 yr)  
   first obs. used      1999-08-08  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:20  

Additional Information
 Jupiter MOID = 1.75966 au 
 T_jup = 3.177 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.230828633700985E-15 -7.070115931901665E-15 4.870943949530302E-13 8.847731812047092E-15 9.917599170425838E-14 2.988096092751663E-18
q -7.070115931901665E-15 2.272708162363606E-14 -9.983306201535924E-13 -2.431859749751876E-14 -2.437878815322126E-13 3.966234694765256E-16
tp 4.870943949530302E-13 -9.983306201535924E-13 4.604067235687202E-9 1.157553886457116E-11 7.545990739373314E-10 9.118968478733013E-13
node 8.847731812047092E-15 -2.431859749751876E-14 1.157553886457116E-11 2.777929116293397E-9 -2.760311519950321E-9 -1.618815082754421E-11
peri 9.917599170425838E-14 -2.437878815322126E-13 7.545990739373314E-10 -2.760311519950321E-9 2.882459074377031E-9 1.623688367403959E-11
i 2.988096092751663E-18 3.966234694765256E-16 9.118968478733013E-13 -1.618815082754421E-11 1.623688367403959E-11 1.617499823112627E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO436477  
diameter diameter 5.205 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101988 (1999 RG64)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RG64 = 2000 YZ85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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