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442240 (2011 MT4)
Classification: Main-belt Asteroid          SPK-ID: 2442240
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2902439763109906 1.4077e-07  
a 2.643250212935042 3.0854e-08 au
q 1.876062760747903 3.8421e-07 au
i 11.65653777339124 1.6632e-05 deg
node 314.7917537373976 3.4734e-05 deg
peri 60.72103201346322 6.4249e-05 deg
M 12.09005218338403 4.3088e-05 deg
tp 2458947.785327190169
(2020-Apr-08.28532719)
0.00018731 TDB
period 1569.660901680843
4.30
2.7483e-05
7.524e-08
d
yr
n .2293488992523802 4.0157e-09 deg/d
Q 3.410437665122181 3.9809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      6711 days (18.37 yr)  
   first obs. used      1998-09-20  
   last obs. used      2017-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59075  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:30:33  

Additional Information
 Earth MOID = .906702 au 
 Jupiter MOID = 2.20986 au 
 T_jup = 3.305 
[ 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 17.1   n/a MPO349187  

442240 (2011 MT4)          Discovered 1998-Sep-20 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 MT4 = 1998 UV44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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