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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846160042838493 3.5078e-08  
a 2.742870242024314 1.1342e-08 au
q 2.236492497672711 9.7567e-08 au
i 11.09114110034787 3.6405e-06 deg
node 78.6952844175064 2.0682e-05 deg
peri 336.9902905717216 2.4089e-05 deg
M 75.61024594412962 1.0823e-05 deg
tp 2458852.014693735732
(2020-Jan-03.51469374)
4.9613e-05 TDB
period 1659.228966770432
4.54
1.0292e-05
2.818e-08
d
yr
n .216968246824134 1.3458e-09 deg/d
Q 3.249247986375918 1.3436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      7161 days (19.61 yr)  
   first obs. used      2001-09-10  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50803  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:34:51  

Additional Information
 Earth MOID = 1.25264 au 
 Jupiter MOID = 2.10619 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 15.15   n/a MPCxxxxx  

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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