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91547 (1999 RZ209)
Classification: Main-belt Asteroid          SPK-ID: 2091547
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1257999450805198 5.5736e-08  
a 3.060356874102515 1.8709e-08 au
q 2.675364147413628 1.7414e-07 au
i 10.52863084882733 6.0317e-06 deg
node 342.1247851249954 2.2814e-05 deg
peri 8.053430905931105 2.807e-05 deg
M 331.0630142640754 1.6371e-05 deg
tp 2459157.683634409516
(2020-Nov-04.18363441)
8.9248e-05 TDB
period 1955.49422126492
5.35
1.7932e-05
4.91e-08
d
yr
n .1840966831224551 1.6882e-09 deg/d
Q 3.445349600791403 2.1063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      7633 days (20.90 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54613  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:56  

Additional Information
 Earth MOID = 1.66945 au 
 Jupiter MOID = 1.9748 au 
 T_jup = 3.196 
[ 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 14.3   n/a MPO348074  

91547 (1999 RZ209)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RZ209 = 2000 XC34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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