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JPL Small-Body Database Browser
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442548 (2011 YR42)
Classification: Main-belt Asteroid          SPK-ID: 2442548
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162129589245955 6.4447e-08  
a 3.100077410880711 8.2026e-08 au
q 2.739808242066965 2.0452e-07 au
i 7.688708554654811 8.5215e-06 deg
node 308.4753815795983 4.6979e-05 deg
peri 49.88105818802899 5.863e-05 deg
M 208.6577983530827 3.5784e-05 deg
tp 2459438.636552835369
(2021-Aug-12.13655284)
0.00021412 TDB
period 1993.688183053328
5.46
7.9128e-05
2.166e-07
d
yr
n .1805698619573804 7.1667e-09 deg/d
Q 3.460346579694458 9.1559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      4453 days (12.19 yr)  
   first obs. used      2007-01-25  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58803  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:47:30  

Additional Information
 Earth MOID = 1.74216 au 
 Jupiter MOID = 1.99085 au 
 T_jup = 3.198 
[ 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 16.5   n/a MPO437721  

442548 (2011 YR42)          Discovered 2010-Jun-22 by WISE at WISE
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 YR42 = 2010 MF40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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