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295783 (2008 UN225)
Classification: Main-belt Asteroid          SPK-ID: 2295783
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06668962699091983 5.1735e-08  
a 2.74553932399399 2.4181e-08 au
q 2.562440330587929 1.4568e-07 au
i 4.581509699189683 5.9317e-06 deg
node 346.3394188367811 7.7815e-05 deg
peri 121.7503752974101 9.255e-05 deg
M 151.099403843261 4.939e-05 deg
tp 2458303.070714698510
(2018-Jul-03.57071470)
0.00022614 TDB
period 1661.651444826228
4.55
2.1952e-05
6.01e-08
d
yr
n .2166519345082313 2.8622e-09 deg/d
Q 2.928638317400052 2.5794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      8923 days (24.43 yr)  
   first obs. used      1994-10-27  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61296  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:37:46  

Additional Information
 Earth MOID = 1.58275 au 
 Jupiter MOID = 2.13809 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457007.5 (2014-Dec-16.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06836066527932089 5.1849e-08  
q 2.555759630158351 1.4669e-07 au
tp 2456641.579399470090
(2013-Dec-15.07939947)
0.00021714 TDB
node 346.3910351311793 7.7816e-05 deg
peri 121.2582307496227 9.1829e-05 deg
i 4.582870201211118 5.9333e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      8923 days (24.43 yr)  
   first obs. used      1994-10-27  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61296  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:37:46  

Additional Information
 Jupiter MOID = 2.13809 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.688328538665917E-15 -7.513318615724012E-15 -8.85185664026609E-13 -5.904489873342581E-15 -1.649191413566447E-13 -3.102876157054367E-15
q -7.513318615724012E-15 2.151733595130829E-14 2.764340188567858E-12 1.74550847992518E-14 5.482420581039862E-13 9.398999689927925E-15
tp -8.85185664026609E-13 2.764340188567858E-12 4.714949709809027E-8 -7.018084576241611E-11 1.06312966184788E-8 7.913971475854685E-12
node -5.904489873342581E-15 1.74550847992518E-14 -7.018084576241611E-11 6.055376676372737E-9 -6.051187491583863E-9 4.637050952537533E-11
peri -1.649191413566447E-13 5.482420581039862E-13 1.06312966184788E-8 -6.051187491583863E-9 8.432612245542802E-9 -4.44196411240413E-11
i -3.102876157054367E-15 9.398999689927925E-15 7.913971475854685E-12 4.637050952537533E-11 -4.44196411240413E-11 3.520388718995444E-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 16.8   n/a MPO433906  

295783 (2008 UN225)          Discovered 2008-Oct-25 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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