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295581 (2008 ST112)
Classification: Main-belt Asteroid          SPK-ID: 2295581
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765617808477564 1.0783e-07  
a 3.018139179669227 4.4424e-08 au
q 2.485251151260441 3.4694e-07 au
i 4.279983917506686 9.5382e-06 deg
node 138.2285859408664 8.1858e-05 deg
peri 192.0691358636257 8.4423e-05 deg
M 40.10236879729289 1.6159e-05 deg
tp 2458387.158744080356
(2018-Sep-25.65874408)
8.6906e-05 TDB
period 1915.169962135913
5.24
4.2284e-05
1.158e-07
d
yr
n .1879728729655442 4.1502e-09 deg/d
Q 3.551027208078012 5.2268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5477 days (15.00 yr)  
   first obs. used      2003-10-29  
   last obs. used      2018-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:13:49  

Additional Information
 Earth MOID = 1.47362 au 
 Jupiter MOID = 1.80649 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457119.5 (2015-Apr-07.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1801399743184556 1.0879e-07  
q 2.472496072897532 3.5022e-07 au
tp 2456463.044046881074
(2013-Jun-19.54404688)
0.00010009 TDB
node 138.3933593052922 8.1469e-05 deg
peri 190.5827238334633 8.3897e-05 deg
i 4.289217601125507 9.5735e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5477 days (15.00 yr)  
   first obs. used      2003-10-29  
   last obs. used      2018-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:13:49  

Additional Information
 Jupiter MOID = 1.80649 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.183464340337056E-14 -3.796003974022989E-14 5.035659802614847E-12 -3.115699173244563E-14 1.049582358731793E-12 -1.141089770026424E-14
q -3.796003974022989E-14 1.226550326043989E-13 -1.732670511663175E-11 9.568342999660679E-14 -3.52206092236782E-12 3.817341814674895E-14
tp 5.035659802614847E-12 -1.732670511663175E-11 1.001854266902205E-8 6.388153458705665E-13 2.018767225229682E-9 -4.335037020143501E-12
node -3.115699173244563E-14 9.568342999660679E-14 6.388153458705665E-13 6.63726750447665E-9 -6.617739587803711E-9 2.399844200508821E-10
peri 1.049582358731793E-12 -3.52206092236782E-12 2.018767225229682E-9 -6.617739587803711E-9 7.038645212622777E-9 -2.401790713841887E-10
i -1.141089770026424E-14 3.817341814674895E-14 -4.335037020143501E-12 2.399844200508821E-10 -2.401790713841887E-10 9.165210460600141E-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 15.9   n/a MPO455185  

295581 (2008 ST112)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 ST112 = 2006 EX39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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