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53285 Mojmir (1999 FM53)
Classification: Main-belt Asteroid          SPK-ID: 2053285
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249287561604537 3.1484e-08  
a 2.914656179013323 1.3491e-08 au
q 2.550531807933808 9.059e-08 au
i 2.716228515351692 3.5659e-06 deg
node 286.3011945438431 8.6042e-05 deg
peri 310.7426815323628 8.819e-05 deg
M 95.3712462312795 1.8282e-05 deg
tp 2458719.002118048325
(2019-Aug-23.50211805)
9.2637e-05 TDB
period 1817.520944229328
4.98
1.2619e-05
3.455e-08
d
yr
n .1980719953423417 1.3752e-09 deg/d
Q 3.278780550092838 1.5176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      7911 days (21.66 yr)  
   first obs. used      1999-03-24  
   last obs. used      2020-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:52:28  

Additional Information
 Earth MOID = 1.53829 au 
 Jupiter MOID = 1.73726 au 
 T_jup = 3.269 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.84   n/a E2021B10  
diameter diameter 7.239 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

53285 Mojmír           Discovered 1999 Mar. 24 at Ondřejov.
Mojmír, a Moravian prince, was the first sufficiently well-known ruler of the Great Moravian Empire. He ruled from A.D. 830 through 845 or 846. He promoted Christianity in his empire, trying to attach Moravia to Western Europe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1999 FM53 = 2000 QA11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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