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JPL Small-Body Database Browser
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469311 (1999 RZ239)
Classification: Main-belt Asteroid          SPK-ID: 2469311
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2964737394962328 8.1878e-08  
a 2.641651958991347 1.886e-08 au
q 1.858471524261633 2.1921e-07 au
i 13.30273587827792 1.1293e-05 deg
node 6.145622094166168 2.8853e-05 deg
peri 346.2359769995274 3.3674e-05 deg
M 205.1332765239398 1.5528e-05 deg
tp 2459275.132770649256
(2021-Mar-01.63277065)
7.2511e-05 TDB
period 1568.237462396339
4.29
1.6795e-05
4.598e-08
d
yr
n .2295570719563754 2.4584e-09 deg/d
Q 3.424832393721061 2.4451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      7146 days (19.56 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51308  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:32:49  

Additional Information
 Earth MOID = .855793 au 
 Jupiter MOID = 2.02204 au 
 T_jup = 3.294 
[ 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 17.2   n/a MPO245810  

469311 (1999 RZ239)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22

Alternate Designations
 1999 RZ239 = 2012 SQ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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