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74744 (1999 RX189)
Classification: Main-belt Asteroid          SPK-ID: 2074744
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578524387792741 5.7741e-08  
a 2.300611352162283 1.3082e-08 au
q 1.937454239540183 1.3412e-07 au
i 6.447218702700463 6.5259e-06 deg
node 12.19044477593927 4.5198e-05 deg
peri 289.0955848270643 4.9502e-05 deg
M 11.8990604968815 2.322e-05 deg
tp 2458958.371743467081
(2020-Apr-18.87174347)
8.2042e-05 TDB
period 1274.56889187392
3.49
1.0872e-05
2.977e-08
d
yr
n .2824484437798526 2.4092e-09 deg/d
Q 2.663768464784383 1.5147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      10290 days (28.17 yr)  
   first obs. used      1991-02-21  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6218  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:29:43  

Additional Information
 Earth MOID = .933973 au 
 Jupiter MOID = 2.57637 au 
 T_jup = 3.567 
[ 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 16.5   n/a MPO474634  

74744 (1999 RX189)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX189 = 2002 LP33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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