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JPL Small-Body Database Browser
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18044 (1999 RS89)
Classification: Main-belt Asteroid          SPK-ID: 2018044
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2850182554962917 5.089e-08  
a 2.538303798725708 6.6807e-09 au
q 1.814840878093297 1.3126e-07 au
i 5.793600281218844 5.007e-06 deg
node 153.9652540783061 2.6115e-05 deg
peri 221.6941811811182 2.7756e-05 deg
M 34.72444944230709 1.0039e-05 deg
tp 2458858.022366060514
(2020-Jan-09.52236606)
4.0897e-05 TDB
period 1477.113360816104
4.04
5.8316e-06
1.597e-08
d
yr
n .2437185997702304 9.6219e-10 deg/d
Q 3.26176671935812 8.5849e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1767  
   data-arc span      8890 days (24.34 yr)  
   first obs. used      1995-09-21  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51635  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:18:06  

Additional Information
 Earth MOID = .820493 au 
 Jupiter MOID = 2.20886 au 
 T_jup = 3.382 
[ 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 14.5   n/a MPO439218  

18044 (1999 RS89)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RS89 = 1995 SN54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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