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JPL Small-Body Database Browser
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243497 (2009 UR122)
Classification: Main-belt Asteroid          SPK-ID: 2243497
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02595299414514265 6.8697e-08  
a 3.082639550338605 4.2254e-08 au
q 3.002635824137082 2.2164e-07 au
i 9.892838931052419 5.4903e-06 deg
node 253.2162571313276 4.8668e-05 deg
peri 50.83380106366724 0.00014237 deg
M 359.8110008796056 0.00013252 deg
tp 2458601.537862518916
(2019-Apr-28.03786252)
0.00072771 TDB
period 1976.890188854532
5.41
4.0646e-05
1.113e-07
d
yr
n .1821041967984041 3.7442e-09 deg/d
Q 3.162643276540128 4.3351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      5883 days (16.11 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57804  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:15:45  

Additional Information
 Earth MOID = 1.99595 au 
 Jupiter MOID = 1.92418 au 
 T_jup = 3.204 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457264.5 (2015-Aug-30.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02918136515008144 6.9517e-08  
q 2.992322317676216 2.2562e-07 au
tp 2456632.232236881170
(2013-Dec-05.73223688)
0.00065097 TDB
node 253.3323180041449 4.8822e-05 deg
peri 52.36575372738146 0.00012771 deg
i 9.875109316638021 5.4826e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      5883 days (16.11 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57804  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:15:45  

Additional Information
 Jupiter MOID = 1.92418 au 
 T_jup = 3.204 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.832652492577068E-15 -1.54315790518484E-14 1.935372210600109E-11 1.045887761161489E-14 3.454657131168101E-12 -7.886624286440276E-16
q -1.54315790518484E-14 5.090412173981456E-14 -6.74674486819654E-11 -3.221886798622527E-14 -1.198109289695454E-11 4.882573698948908E-15
tp 1.935372210600109E-11 -6.74674486819654E-11 4.23757164178861E-7 7.435757644631422E-11 7.694055987609293E-8 8.160665096947143E-12
node 1.045887761161489E-14 -3.221886798622527E-14 7.435757644631422E-11 2.383578900545336E-9 -2.334998185552749E-9 2.482391984092218E-11
peri 3.454657131168101E-12 -1.198109289695454E-11 7.694055987609293E-8 -2.334998185552749E-9 1.631102210457453E-8 -2.282575398711175E-11
i -7.886624286440276E-16 4.882573698948908E-15 8.160665096947143E-12 2.482391984092218E-11 -2.282575398711175E-11 3.005906874121789E-11

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 15.0   n/a MPO450092  
diameter diameter 3.638 km 0.762 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243497 (2009 UR122)          Discovered 2009-Oct-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 UR122 = 2004 XG43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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