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295810 (2008 UB317)
Classification: Main-belt Asteroid          SPK-ID: 2295810
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0879334589303559 5.4673e-08  
a 2.655126683822775 2.6137e-08 au
q 2.421652210615953 1.4626e-07 au
i 11.82235341384613 5.837e-06 deg
node 284.3681488260102 2.9144e-05 deg
peri 233.9965262788578 4.8135e-05 deg
M 201.1259113294141 4.2614e-05 deg
tp 2459697.891852892180
(2022-Apr-28.39185289)
0.00019156 TDB
period 1580.251815396668
4.33
2.3334e-05
6.389e-08
d
yr
n .2278117933436034 3.3638e-09 deg/d
Q 2.888601157029597 2.8435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      9114 days (24.95 yr)  
   first obs. used      1995-11-29  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:05:32  

Additional Information
 Earth MOID = 1.45304 au 
 Jupiter MOID = 2.22016 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457563.5 (2016-Jun-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08617893993043925 5.4764e-08  
q 2.427895325947069 1.4628e-07 au
tp 2458116.898984240688
(2017-Dec-29.39898424)
0.00018544 TDB
node 284.4228889630772 2.9189e-05 deg
peri 233.965236773323 4.8731e-05 deg
i 11.80921348405419 5.8315e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      9114 days (24.95 yr)  
   first obs. used      1995-11-29  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:05:32  

Additional Information
 Jupiter MOID = 2.22016 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.999056311550544E-15 -7.903153978015253E-15 1.649328937668633E-13 7.430124978214749E-15 4.712831432029539E-14 3.911275706356758E-15
q -7.903153978015253E-15 2.139823469327992E-14 1.113312646486148E-12 -1.416303981744198E-14 1.699501556604818E-13 -8.358843317289424E-15
tp 1.649328937668633E-13 1.113312646486148E-12 3.438841759079716E-8 3.643540673620082E-11 7.275357842572095E-9 2.745668106779428E-11
node 7.430124978214749E-15 -1.416303981744198E-14 3.643540673620082E-11 8.520099811774858E-10 -8.258056183144882E-10 5.509356504627827E-12
peri 4.712831432029539E-14 1.699501556604818E-13 7.275357842572095E-9 -8.258056183144882E-10 2.374696299489172E-9 4.080290451996094E-13
i 3.911275706356758E-15 -8.358843317289424E-15 2.745668106779428E-11 5.509356504627827E-12 4.080290451996094E-13 3.400644794720303E-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 15.9   n/a MPO476299  

295810 (2008 UB317)          Discovered 2008-Oct-30 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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