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JPL Small-Body Database Browser
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12574 LONEOS (1999 RT)
Classification: Main-belt Asteroid          SPK-ID: 2012574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08765169656350529 3.2158e-08  
a 2.688702769273912 1.2302e-08 au
q 2.453033409992059 8.7252e-08 au
i 10.99182210873772 3.7808e-06 deg
node 116.7333210920501 2.586e-05 deg
peri 337.235061227976 4.0575e-05 deg
M 149.7817296613855 3.0089e-05 deg
tp 2458330.509014748374
(2018-Jul-31.00901475)
0.00013464 TDB
period 1610.321600877915
4.41
1.1052e-05
3.026e-08
d
yr
n .2235578283267983 1.5343e-09 deg/d
Q 2.924372128555766 1.338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1848  
   data-arc span      10727 days (29.37 yr)  
   first obs. used      1990-09-14  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:23:13  

Additional Information
 Earth MOID = 1.47343 au 
 Jupiter MOID = 2.21206 au 
 T_jup = 3.341 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO384867  
diameter diameter 7.401 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.225   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

12574 LONEOS           Discovered 1999 Sept. 4 by C. W. Juels at Fountain Hills.
LONEOS, the Lowell Observatory Near-Earth-Object Search, looks for and has discovered many minor planets and comets that approach Earth. The LONEOS 0.59-m f/1.91 Schmidt telescope, which began full-time operations in March 1998, can survey the entire sky accessible from Anderson Mesa, Arizona, every month.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1999 RT = 1990 RX10 = 1998 MG8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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