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JPL Small-Body Database Browser
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40430 (1999 RL28)
Classification: Mars-crossing Asteroid          SPK-ID: 2040430
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4153578173588292 5.4308e-08  
a 2.371908730777047 6.786e-09 au
q 1.386717897387142 1.2797e-07 au
i 20.51008402542366 6.6573e-06 deg
node 172.4626433334303 1.7433e-05 deg
peri 83.9700229792966 1.9174e-05 deg
M 189.1182555321185 5.5604e-06 deg
tp 2459233.842388495439
(2021-Jan-19.34238850)
2.2072e-05 TDB
period 1334.275118552602
3.65
5.726e-06
1.568e-08
d
yr
n .2698094231049752 1.1579e-09 deg/d
Q 3.357099564166953 9.6046e-09 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      15096 days (41.33 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61709  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:11:16  

Additional Information
 Earth MOID = .552701 au 
 Jupiter MOID = 2.16706 au 
 T_jup = 3.344 
[ 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 16.1   n/a MPO263683  

40430 (1999 RL28)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RL28 = 1977 RG10 = 2002 EF8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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