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JPL Small-Body Database Browser
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74742 (1999 RK187)
Classification: Main-belt Asteroid          SPK-ID: 2074742
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09301650074183807 5.0032e-08  
a 2.300271292502363 1.3272e-08 au
q 2.086308106116888 1.1895e-07 au
i 12.35280279600062 5.1011e-06 deg
node 143.2130717148408 2.4147e-05 deg
peri 107.122574121714 4.1146e-05 deg
M 312.5989378948841 3.574e-05 deg
tp 2458768.284789812353
(2019-Oct-11.78478981)
0.0001269 TDB
period 1274.286306043084
3.49
1.1028e-05
3.019e-08
d
yr
n .2825110795688237 2.445e-09 deg/d
Q 2.514234478887837 1.4506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:56  

Additional Information
 Earth MOID = 1.10832 au 
 Jupiter MOID = 2.58437 au 
 T_jup = 3.555 
[ 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 15.8   n/a MPO319941  

74742 (1999 RK187)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RK187 = 2002 LV46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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