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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248517617127822 4.5547e-08  
a 2.917002856957318 1.7711e-08 au
q 2.552809911344978 1.3941e-07 au
i 2.71667834085964 3.8327e-06 deg
node 286.3102675321288 0.00011715 deg
peri 311.1165418725733 0.00011872 deg
M 55.41658641581099 1.872e-05 deg
tp 2458720.382024983996
(2019-Aug-24.88202498)
9.4536e-05 TDB
period 1819.716397706339
4.98
1.6573e-05
4.537e-08
d
yr
n .1978330252196232 1.8017e-09 deg/d
Q 3.281195802569658 1.9922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      7407 days (20.28 yr)  
   first obs. used      1999-03-24  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:45:33  

Additional Information
 Earth MOID = 1.54187 au 
 Jupiter MOID = 1.73667 au 
 T_jup = 3.268 
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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 14.8   n/a MPO347883  
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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