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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2905552573375423 1.4085e-07  
a 2.645032345238729 3.1601e-08 au
q 1.876504291501767 3.8501e-07 au
i 11.65093872935852 1.6624e-05 deg
node 314.8108944925061 3.4754e-05 deg
peri 60.59672378234791 6.413e-05 deg
M 280.4968426170865 4.1956e-05 deg
tp 2458947.497849686671
(2020-Apr-07.99784969)
0.00018694 TDB
period 1571.248614511611
4.30
2.8158e-05
7.709e-08
d
yr
n .2291171471370864 4.1059e-09 deg/d
Q 3.413560398975691 4.0782e-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 = .906203 au 
 Jupiter MOID = 2.20312 au 
 T_jup = 3.304 
[ 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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