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243561 (1994 YD4)
Classification: Main-belt Asteroid          SPK-ID: 2243561
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .16708349548783 9.7123e-08  
a 2.637880093083463 1.7349e-08 au
q 2.197133866453315 2.5552e-07 au
i 4.605633547762876 5.392e-06 deg
node 292.7403955627493 0.00010844 deg
peri 79.88475089815996 0.00011306 deg
M 53.92333928116106 2.3479e-05 deg
tp 2458766.101255871060
(2019-Oct-09.60125587)
0.00010285 TDB
period 1564.879864847303
4.28
1.5438e-05
4.227e-08
d
yr
n .2300496083353516 2.2695e-09 deg/d
Q 3.07862631971361 2.0248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      9684 days (26.51 yr)  
   first obs. used      1993-07-24  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:22:23  

Additional Information
 Earth MOID = 1.20303 au 
 Jupiter MOID = 2.42048 au 
 T_jup = 3.372 
[ 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 16.9   n/a MPO503159  

243561 (1994 YD4)          Discovered 1994-Dec-31 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 1994 YD4 = 2006 QX99 = 2008 BL27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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