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442539 (2011 YM9)
Classification: Main-belt Asteroid          SPK-ID: 2442539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04126547812189817 5.7021e-08  
a 3.020283304799819 4.8142e-08 au
q 2.895649870163667 1.9199e-07 au
i 8.786251255817989 5.7218e-06 deg
node 83.34792975168982 3.8762e-05 deg
peri 216.1157708617054 9.2117e-05 deg
M 354.5292493029353 8.3164e-05 deg
tp 2459029.634956465040
(2020-Jun-29.13495647)
0.00044299 TDB
period 1917.211166840809
5.25
4.584e-05
1.255e-07
d
yr
n .1877727431523414 4.4895e-09 deg/d
Q 3.14491673943597 5.0129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      6354 days (17.40 yr)  
   first obs. used      2002-01-09  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:35  

Additional Information
 Earth MOID = 1.88459 au 
 Jupiter MOID = 1.95675 au 
 T_jup = 3.227 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO437721  

442539 (2011 YM9)          Discovered 2010-Jun-13 by WISE at WISE
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 YM9 = 2010 LZ95 = 2014 HA183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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