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173203 (1998 RD64)
Classification: Main-belt Asteroid          SPK-ID: 2173203
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430891745498951 5.3821e-08  
a 2.568663049375558 1.3428e-08 au
q 1.944248869006037 1.3279e-07 au
i 4.412249581858881 4.685e-06 deg
node 24.33716103763166 9.8851e-05 deg
peri 12.73125899470242 0.00010016 deg
M 72.79227551413659 1.9428e-05 deg
tp 2458696.452155108084
(2019-Jul-31.95215511)
7.9812e-05 TDB
period 1503.692849110518
4.12
1.1791e-05
3.228e-08
d
yr
n .2394105951976505 1.8773e-09 deg/d
Q 3.193077229745079 1.6692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      9350 days (25.60 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:23:59  

Additional Information
 Earth MOID = .951728 au 
 Jupiter MOID = 2.24367 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2415157633749128 5.3236e-08  
q 1.949103681070772 1.309e-07 au
tp 2457188.237154773500
(2015-Jun-14.73715477)
7.4782e-05 TDB
node 24.39678954907612 9.8723e-05 deg
peri 12.00769088258476 0.00010009 deg
i 4.417371424679654 4.6843e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      9350 days (25.60 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:23:59  

Additional Information
 Jupiter MOID = 2.24367 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.834055133630136E-15 -6.953827538236376E-15 1.571947133850809E-12 1.103229244684959E-15 2.333371524682837E-13 -3.572154926022453E-15
q -6.953827538236376E-15 1.713596574654872E-14 -3.65352563088815E-12 -2.962545944964622E-15 -5.286119143967299E-13 8.42723183064287E-15
tp 1.571947133850809E-12 -3.65352563088815E-12 5.592348726873463E-9 5.279239444453647E-11 1.305725367097826E-9 -9.401351743161531E-12
node 1.103229244684959E-15 -2.962545944964622E-15 5.279239444453647E-11 9.746214532881696E-9 -9.70379330076305E-9 -2.272392459038741E-11
peri 2.333371524682837E-13 -5.286119143967299E-13 1.305725367097826E-9 -9.70379330076305E-9 1.001835985878278E-8 2.046672904261724E-11
i -3.572154926022453E-15 8.42723183064287E-15 -9.401351743161531E-12 -2.272392459038741E-11 2.046672904261724E-11 2.194305790860782E-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 16.4   n/a MPO502964  

173203 (1998 RD64)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1998 RD64 = 1994 TY9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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