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JPL Small-Body Database Browser
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212244 (2005 JU57)
Classification: Main-belt Asteroid          SPK-ID: 2212244
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01053194772866455 9.6525e-08  
a 2.702764166516548 3.9827e-08 au
q 2.674298795591889 2.455e-07 au
i .8565258642071458 8.4695e-06 deg
node 291.6106177849263 0.00065138 deg
peri 261.7609536292828 0.00077293 deg
M 86.81605054108411 0.00041904 deg
tp 2458209.111392974393
(2018-Mar-31.61139297)
0.0018872 TDB
period 1622.970610285251
4.44
3.5873e-05
9.821e-08
d
yr
n .2218154769523071 4.9029e-09 deg/d
Q 2.731229537441208 4.0246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      8499 days (23.27 yr)  
   first obs. used      1995-01-07  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:55:41  

Additional Information
 Earth MOID = 1.66982 au 
 Jupiter MOID = 2.22898 au 
 T_jup = 3.366 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456134.5 (2012-Jul-26.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008479038329652052 9.6974e-08  
q 2.679645151832362 2.4535e-07 au
tp 2456571.364479876520
(2013-Oct-05.86447988)
0.00232 TDB
node 291.8399526628407 0.00065319 deg
peri 258.1409256015203 0.00083109 deg
i .8547576533642215 8.4648e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      8499 days (23.27 yr)  
   first obs. used      1995-01-07  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:55:41  

Additional Information
 Jupiter MOID = 2.22898 au 
 T_jup = 3.366 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.404015884110705E-15 -2.355214113863319E-14 9.247336335806888E-12 -8.33998148648168E-14 2.015523476844973E-12 1.066762363735436E-15
q -2.355214113863319E-14 6.019648256235544E-14 -2.992317789316096E-12 2.129515224361124E-13 -6.611388405428225E-13 -2.464059983189515E-15
tp 9.247336335806888E-12 -2.992317789316096E-12 5.382418884763241E-6 -6.852393472211092E-10 1.192265561910662E-6 -2.309569591689844E-11
node -8.33998148648168E-14 2.129515224361124E-13 -6.852393472211092E-10 4.266629764710865E-7 -4.267636381656996E-7 7.123778811024198E-10
peri 2.015523476844973E-12 -6.611388405428225E-13 1.192265561910662E-6 -4.267636381656996E-7 6.907078458721278E-7 -7.174425149919295E-10
i 1.066762363735436E-15 -2.464059983189515E-15 -2.309569591689844E-11 7.123778811024198E-10 -7.174425149919295E-10 7.165275372059734E-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 17.0   n/a MPO450007  

212244 (2005 JU57)          Discovered 2005-May-07 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 JU57 = 2004 BQ128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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