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JPL Small-Body Database Browser
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441866 (2009 YM11)
Classification: Main-belt Asteroid          SPK-ID: 2441866
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1465341405397142 4.8999e-08  
a 2.258044630183557 1.3813e-08 au
q 1.927164000999293 1.0796e-07 au
i 3.652484442129748 5.4751e-06 deg
node 68.7204630514657 7.4756e-05 deg
peri 345.823892033056 7.9564e-05 deg
M 62.86763770190789 2.2256e-05 deg
tp 2458784.067811933089
(2019-Oct-27.56781193)
7.6916e-05 TDB
period 1239.359240338111
3.39
1.1372e-05
3.113e-08
d
yr
n .2904726799808166 2.6653e-09 deg/d
Q 2.588925259367822 1.5837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      4713 days (12.90 yr)  
   first obs. used      2007-02-26  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:21  

Additional Information
 Earth MOID = .938926 au 
 Jupiter MOID = 2.73924 au 
 T_jup = 3.605 
[ 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 18.1   n/a MPO460658  
diameter diameter 1.560 km 0.374 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441866 (2009 YM11)          Discovered 2009-Dec-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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