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31147 Miriquidi (1997 UA4)
Classification: Main-belt Asteroid          SPK-ID: 2031147
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05649354232472351 1.0288e-08  
a 2.312094720901964 6.7655e-09 au
q 2.181476299927919 2.6171e-08 au
i 3.597467634009019 9.3466e-07 deg
node 253.8025832041812 1.6026e-05 deg
peri 317.6136019096783 2.7383e-05 deg
M 97.59079638707938 2.2953e-05 deg
tp 2459048.392627420927
(2020-Jul-17.89262742)
8.1865e-05 TDB
period 1284.123695757215
3.52
5.6363e-06
1.543e-08
d
yr
n .2803468242112901 1.2305e-09 deg/d
Q 2.442713141876009 7.1477e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2101  
   data-arc span      8648 days (23.68 yr)  
   first obs. used      1997-10-22  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47428  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:49:08  

Additional Information
 Earth MOID = 1.17688 au 
 Jupiter MOID = 2.52696 au 
 T_jup = 3.579 
[ 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 14.16   n/a E2021B10  
diameter diameter 3.525 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.357   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31147 Miriquidi           Discovered 1997 Oct. 22 by J. Kandler at Drebach.
The word Miriquidi is first mentioned in a document of the emperor Otto II in the year 974. It means "an impenetrable great dark forest" and can be localized to a region in the southern Saxony. Today, the word is used as a synonym for the Erzgebirge.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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