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100940 Maunder (1998 MM47)
Classification: Main-belt Asteroid          SPK-ID: 2100940
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661868726536573 9.3383e-08  
a 2.612608812859036 2.819e-08 au
q 2.178427524782609 2.343e-07 au
i 15.8510130475054 1.0359e-05 deg
node 111.4181973671479 3.3752e-05 deg
peri 144.5042540547634 4.8421e-05 deg
M 125.7838603499545 3.6558e-05 deg
tp 2457061.569916954311
0.00015272 JED
period 1542.44614020163
n .2333955077050149 3.7775e-09 deg/d
Q 3.046790100935463 3.2875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      6321 days (17.31 yr)  
   first obs. used      1998-06-26  
   last obs. used      2015-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58634  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 18:57:22  

Additional Information
 Earth MOID = 1.18014 au 
 Jupiter MOID = 2.11475 au 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO344986  

100940 Maunder           Discovered 1998 June 28 by E. W. Elst at the European Southern Observatory.
Edward Walter Maunder (1851-1925), a British astronomer, was the driving force in the foundation of the British Astronomical Association. He is well-known for discovering a prolonged minimum in solar activity from 1645 to 1715, corresponding with lower than average European temperatures.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-04-25Last Updated: 2013-04-29

Alternate Designations
 1998 MM47 = 2001 BK7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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