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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842540413619887 3.789e-08  
a 2.742007499896847 1.2536e-08 au
q 2.23678153659597 1.0645e-07 au
i 11.09217848142907 4.1196e-06 deg
node 78.69839433981562 2.2371e-05 deg
peri 337.0460788400503 2.6225e-05 deg
M 305.3673910367215 1.1661e-05 deg
tp 2458852.181227952413
(2020-Jan-03.68122795)
5.3798e-05 TDB
period 1658.446187766166
4.54
1.1373e-05
3.114e-08
d
yr
n .2170706548428321 1.4887e-09 deg/d
Q 3.247233463197723 1.4846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      6650 days (18.21 yr)  
   first obs. used      2001-09-10  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50965  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:59:23  

Additional Information
 Earth MOID = 1.25325 au 
 Jupiter MOID = 2.10644 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 15.1   n/a MPO366824  

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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