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295429 (2008 KY31)
Classification: Main-belt Asteroid          SPK-ID: 2295429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03779372948403226 4.5252e-08  
a 2.651580040763575 2.4802e-08 au
q 2.551366941997697 1.2027e-07 au
i 14.49033716980574 5.2689e-06 deg
node 91.99787353477805 2.5174e-05 deg
peri 14.38254201360688 0.00012406 deg
M 97.92103016506911 0.00011746 deg
tp 2458771.527934704305
(2019-Oct-15.02793470)
0.00051553 TDB
period 1577.086589531604
4.32
2.2127e-05
6.058e-08
d
yr
n .2282690135022455 3.2027e-09 deg/d
Q 2.751793139529453 2.5739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1995-07-02  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:42:09  

Additional Information
 Earth MOID = 1.56955 au 
 Jupiter MOID = 2.39879 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457587.5 (2016-Jul-18.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03793368008292944 4.4644e-08  
q 2.552249109827563 1.1912e-07 au
tp 2457202.353013470586
(2015-Jun-28.85301347)
0.00051953 TDB
node 92.02561928366229 2.5179e-05 deg
peri 16.34903257713891 0.00012392 deg
i 14.4867783792776 5.2673e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1995-07-02  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:42:09  

Additional Information
 Jupiter MOID = 2.39879 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.993126633664052E-15 -5.210087592441632E-15 -4.282571408888053E-12 1.146773354617569E-14 -1.043534985016349E-12 -4.445994418099254E-15
q -5.210087592441632E-15 1.419058929303221E-14 8.47754152448095E-12 -3.933530335348337E-14 2.117912196185901E-12 1.442211854058018E-14
tp -4.282571408888053E-12 8.47754152448095E-12 2.699086312980721E-7 4.912851082852572E-10 6.308670094572275E-8 -1.189140409280414E-10
node 1.146773354617569E-14 -3.933530335348337E-14 4.912851082852572E-10 6.339848918218343E-10 -4.982615876760028E-10 -2.533361624536008E-11
peri -1.043534985016349E-12 2.117912196185901E-12 6.308670094572275E-8 -4.982615876760028E-10 1.535640418728166E-8 -3.360753583984607E-12
i -4.445994418099254E-15 1.442211854058018E-14 -1.189140409280414E-10 -2.533361624536008E-11 -3.360753583984607E-12 2.774476086027292E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.54   n/a E2021B55  

295429 (2008 KY31)          Discovered 2008-May-29 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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