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134557 (1999 RH172)
Classification: Main-belt Asteroid          SPK-ID: 2134557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1232146853709981 4.3408e-08  
a 2.291667886711326 9.7487e-09 au
q 2.009300749075369 9.6346e-08 au
i 6.687779318472951 4.8084e-06 deg
node 16.6875000922724 3.1699e-05 deg
peri 29.24743462437206 3.6673e-05 deg
M 303.0329682488727 1.8769e-05 deg
tp 2459201.015078150158
(2020-Dec-17.51507815)
6.6464e-05 TDB
period 1267.143923689309
3.47
8.0856e-06
2.214e-08
d
yr
n .2841034812776866 1.8128e-09 deg/d
Q 2.574035024347282 1.095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8136 days (22.28 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:57:03  

Additional Information
 Earth MOID = 1.02086 au 
 Jupiter MOID = 2.799 au 
 T_jup = 3.579 
[ 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 15.7   n/a MPO436658  

134557 (1999 RH172)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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