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JPL Small-Body Database Browser
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74646 (1999 RD70)
Classification: Main-belt Asteroid          SPK-ID: 2074646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2218385743727234 3.9914e-08  
a 2.358617247932998 1.3533e-08 au
q 1.835384960160626 9.1806e-08 au
i 2.362243875836443 5.4556e-06 deg
node 165.1685942840307 9.9139e-05 deg
peri 108.8532294323509 9.9906e-05 deg
M 199.55462792926 1.1251e-05 deg
tp 2459190.170397469914
(2020-Dec-06.67039747)
4.2226e-05 TDB
period 1323.075513799018
3.62
1.1387e-05
3.118e-08
d
yr
n .2720933130765247 2.3418e-09 deg/d
Q 2.881849535705371 1.6535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      10153 days (27.80 yr)  
   first obs. used      1991-03-15  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57867  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:28:13  

Additional Information
 Earth MOID = .820265 au 
 Jupiter MOID = 2.24058 au 
 T_jup = 3.518 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO426452  

74646 (1999 RD70)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RD70 = 2002 JW128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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