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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1662821581703918 5.4975e-08  
a 2.612179754699559 1.8063e-08 au
q 2.177820867559111 1.3832e-07 au
i 15.85875066777466 4.6312e-06 deg
node 111.3964766633886 1.8995e-05 deg
peri 144.2835480471423 2.5692e-05 deg
M 185.3491545629092 2.2453e-05 deg
tp 2460144.619900076115
(2023-Jul-19.11990008)
0.0001018 TDB
period 1542.066191282262
4.22
1.5995e-05
4.379e-08
d
yr
n .2334530139076923 2.4214e-09 deg/d
Q 3.046538641840006 2.1066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      8256 days (22.60 yr)  
   first obs. used      1998-06-26  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:27  

Additional Information
 Earth MOID = 1.1799 au 
 Jupiter MOID = 2.11958 au 
 T_jup = 3.336 
[ 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 15.19   n/a MPCxxxxx  
diameter diameter 4.494 km 0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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