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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05619382599017 1.0375e-08  
a 2.311012522626732 6.7874e-09 au
q 2.181147887069142 2.64e-08 au
i 3.599164842687752 9.3555e-07 deg
node 253.826497825286 1.6019e-05 deg
peri 317.1753685727217 2.7478e-05 deg
M 43.0587648565884 2.3072e-05 deg
tp 2459047.016765763354
(2020-Jul-16.51676576)
8.2234e-05 TDB
period 1283.222231506673
3.51
5.6532e-06
1.548e-08
d
yr
n .2805437679935706 1.2359e-09 deg/d
Q 2.440877158184323 7.1688e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2033  
   data-arc span      8301 days (22.73 yr)  
   first obs. used      1997-10-22  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:45:51  

Additional Information
 Earth MOID = 1.17504 au 
 Jupiter MOID = 2.52967 au 
 T_jup = 3.580 
[ 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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