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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .19689592598952 4.7225e-08  
a 3.124939311661141 2.2074e-08 au
q 2.509651492230567 1.5115e-07 au
i 6.068917088932849 4.0224e-06 deg
node 124.1550637985198 5.265e-05 deg
peri 251.0610425901665 5.3645e-05 deg
M 285.0686396223801 1.3803e-05 deg
tp 2459620.473535766377
(2022-Feb-09.97353577)
8.0176e-05 TDB
period 2017.719578477751
5.52
2.1379e-05
5.853e-08
d
yr
n .1784192431098867 1.8905e-09 deg/d
Q 3.740227131091714 2.642e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:46  

Additional Information
 Earth MOID = 1.51737 au 
 Jupiter MOID = 1.7585 au 
 T_jup = 3.176 
[ show covariance matrix ]

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 14.84   n/a E2021B55  
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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