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71224 (1999 YW12)
Classification: Main-belt Asteroid          SPK-ID: 2071224
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563242244459868 3.9881e-08  
a 2.697702171849468 1.7766e-08 au
q 2.275985972048845 1.1205e-07 au
i 11.41269949745073 4.47e-06 deg
node 260.4441933637498 2.6169e-05 deg
peri 41.81053056718783 3.3446e-05 deg
M 346.427757997595 1.7714e-05 deg
tp 2459061.515268013614
(2020-Jul-31.01526801)
7.9444e-05 TDB
period 1618.413264441404
4.43
1.5987e-05
4.377e-08
d
yr
n .2224400948198198 2.1973e-09 deg/d
Q 3.11941837165009 2.0543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      8009 days (21.93 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:33:00  

Additional Information
 Earth MOID = 1.27394 au 
 Jupiter MOID = 2.1063 au 
 T_jup = 3.323 
[ 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 15.2   n/a MPO432266  

71224 (1999 YW12)          Discovered 1999-Dec-31 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 YW12 = 2002 LF19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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