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305560 (2008 UR370)
Classification: Main-belt Asteroid          SPK-ID: 2305560
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408392517366007 8.5489e-08  
a 2.644881512232461 4.2288e-08 au
q 2.272378379117673 2.5074e-07 au
i 10.15098274529866 8.4242e-06 deg
node 107.3588993141025 4.8432e-05 deg
peri 217.5269650482896 6.2405e-05 deg
M 11.91872025721966 4.5238e-05 deg
tp 2458948.484247696482
(2020-Apr-08.98424770)
0.00019654 TDB
period 1571.114215716543
4.30
3.768e-05
1.032e-07
d
yr
n .2291367466469099 5.4953e-09 deg/d
Q 3.01738464534725 4.8243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      5760 days (15.77 yr)  
   first obs. used      2003-10-17  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66611  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:01  

Additional Information
 Earth MOID = 1.26858 au 
 Jupiter MOID = 2.29237 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416178617161373 8.4783e-08  
q 2.270603661841599 2.4848e-07 au
tp 2457379.769982099583
(2015-Dec-23.26998210)
0.00017285 TDB
node 107.3917456452918 4.8484e-05 deg
peri 218.1100519711681 6.2508e-05 deg
i 10.14595982560083 8.4208e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      5760 days (15.77 yr)  
   first obs. used      2003-10-17  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66611  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:01  

Additional Information
 Jupiter MOID = 2.29237 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.188125207064813E-15 -2.093469286498482E-14 -5.927141524057625E-12 4.486048592620199E-14 -1.269670378365081E-12 -1.3226564954808E-14
q -2.093469286498482E-14 6.174089505316902E-14 1.92808127374723E-11 -1.293712416677831E-13 4.156061013329518E-12 4.124130410164314E-14
tp -5.927141524057625E-12 1.92808127374723E-11 2.987615757602802E-8 -2.228406885749827E-11 6.904471795013125E-9 2.678164760674711E-11
node 4.486048592620199E-14 -1.293712416677831E-13 -2.228406885749827E-11 2.350681186019435E-9 -2.316405841494377E-9 -9.339629394783353E-11
peri -1.269670378365081E-12 4.156061013329518E-12 6.904471795013125E-9 -2.316405841494377E-9 3.907230882650695E-9 9.823262734152464E-11
i -1.3226564954808E-14 4.124130410164314E-14 2.678164760674711E-11 -9.339629394783353E-11 9.823262734152464E-11 7.09106260479027E-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 16.4   n/a MPO251886  

305560 (2008 UR370)          Discovered 2008-Oct-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 UR370 = 2007 TG287 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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