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146471 (2001 RY78)
Classification: Main-belt Asteroid          SPK-ID: 2146471
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1845155048582907 3.7828e-08  
a 2.7428453226737 1.2174e-08 au
q 2.236747833212361 1.064e-07 au
i 11.09177357801327 4.0719e-06 deg
node 78.69926527856767 2.0953e-05 deg
peri 337.007887046019 2.4961e-05 deg
M 32.20804778243582 1.12e-05 deg
tp 2458852.056117850866
(2020-Jan-03.55611785)
5.1609e-05 TDB
period 1659.20635533926
4.54
1.1046e-05
3.024e-08
d
yr
n .2169712036369282 1.4445e-09 deg/d
Q 3.248942812135039 1.442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      6716 days (18.39 yr)  
   first obs. used      2001-09-10  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:36  

Additional Information
 Earth MOID = 1.25358 au 
 Jupiter MOID = 2.10564 au 
 T_jup = 3.298 
[ 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 15.0   n/a MPO502886  

146471 (2001 RY78)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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