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JPL Small-Body Database Browser
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(2011 MM4)
Classification: Centaur          SPK-ID: 3568420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4733186645515838 8.8298e-06  
a 21.26409954511922 0.00052629 au
q 11.19940434553145 0.0001086 au
i 100.4867895706808 1.4595e-05 deg
node 282.4304044029695 4.9476e-05 deg
peri 7.508322722957179 0.0013215 deg
M 60.55881564288934 0.0025619 deg
tp 2453371.683913679951
(2005-Jan-01.18391368)
0.031357 TDB
period 35815.32710060337
98.06
1.3297
0.003641
d
yr
n .01005156253323553 3.7317e-07 deg/d
Q 31.328794744707 0.0007754 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      2552 days (6.99 yr)  
   first obs. used      2010-06-03  
   last obs. used      2017-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .48048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:09:53  

Additional Information
 Earth MOID = 10.1898 au 
 Jupiter MOID = 6.01764 au 
 T_jup = -0.404 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.5   n/a MPO456798  
diameter diameter 63.700 km 6.200 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
geometric albedo albedo 0.083   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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