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22260 Ur (1979 UR)
Classification: Main-belt Asteroid          SPK-ID: 2022260
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521058417243617 4.6026e-08  
a 2.64222082100503 1.4721e-08 au
q 2.240323599004426 1.2389e-07 au
i 6.147373888145391 5.0824e-06 deg
node 13.54210325526257 3.4605e-05 deg
peri 347.0955138035049 3.6622e-05 deg
M 233.4266252216547 1.527e-05 deg
tp 2459752.058969584278
(2022-Jun-21.55896958)
6.9355e-05 TDB
period 1568.744053779553
4.29
1.311e-05
3.589e-08
d
yr
n .229482941549743 1.9179e-09 deg/d
Q 3.044118043005634 1.696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      14826 days (40.59 yr)  
   first obs. used      1979-10-19  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:54  

Additional Information
 Earth MOID = 1.2363 au 
 Jupiter MOID = 2.40825 au 
 T_jup = 3.370 
[ 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 14.4   n/a MPO467972  
diameter diameter 9.731 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22260 Ur           Discovered 1979 Oct. 19 by A. Mrkos at Klet.
Ur was an important city of ancient southern Mesopotamia (Sumer), situated near the Euphrates River. The excavations at Ur discovered architectural monuments, including the ziggurat, and they greatly enlarged our knowledge of Mesopotamian history. The name was suggested by J. Ticha.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1979 UR = 1994 CN11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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