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175247 (2005 JS21)
Classification: Main-belt Asteroid          SPK-ID: 2175247
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1316036986973272 5.6489e-08  
a 2.314518338214687 1.1037e-08 au
q 2.009919164202842 1.2868e-07 au
i .5586336613886866 4.9596e-06 deg
node 336.3644162381966 0.00051277 deg
peri 242.7444413196521 0.00051302 deg
M 162.6869113234351 1.6705e-05 deg
tp 2458619.281433177119
(2019-May-15.78143318)
5.8769e-05 TDB
period 1286.143318808562
3.52
9.1994e-06
2.519e-08
d
yr
n .2799065972939093 2.0021e-09 deg/d
Q 2.619117512226531 1.2489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7216 days (19.76 yr)  
   first obs. used      2001-02-02  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:36  

Additional Information
 Earth MOID = 1.00106 au 
 Jupiter MOID = 2.35175 au 
 T_jup = 3.570 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309281658737736 5.6635e-08  
q 2.011845171681849 1.2899e-07 au
tp 2457332.369030961222
(2015-Nov-05.86903096)
5.8067e-05 TDB
node 336.4636654020083 0.00051265 deg
peri 242.6799723944867 0.0005129 deg
i .5587164524521748 4.9597e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7216 days (19.76 yr)  
   first obs. used      2001-02-02  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:36  

Additional Information
 Jupiter MOID = 2.35175 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.207556483540712E-15 -7.286606665150142E-15 -2.787421006409867E-13 1.577344627664449E-14 1.006047614269491E-14 -3.433541266324284E-16
q -7.286606665150142E-15 1.663966931970638E-14 6.591159983674499E-13 -3.863593318502314E-14 -1.232175690489917E-14 8.142079716322512E-16
tp -2.787421006409867E-13 6.591159983674499E-13 3.371768894399081E-9 1.674675344273963E-11 9.501114218282733E-10 2.051342882129233E-13
node 1.577344627664449E-14 -3.863593318502314E-14 1.674675344273963E-11 2.628062875420744E-7 -2.6278865968098E-7 6.645000936546527E-10
peri 1.006047614269491E-14 -1.232175690489917E-14 9.501114218282733E-10 -2.6278865968098E-7 2.630638885285879E-7 -6.644227486049583E-10
i -3.433541266324284E-16 8.142079716322512E-16 2.051342882129233E-13 6.645000936546527E-10 -6.644227486049583E-10 2.459813407889802E-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 17.5   n/a MPO433129  

175247 (2005 JS21)          Discovered 2005-May-04 by Siding Spring Survey at Siding Spring
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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