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JPL Small-Body Database Browser
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441584 (2008 US97)
Classification: Main-belt Asteroid          SPK-ID: 2441584
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081618562567144 7.5394e-08  
a 2.450155131157254 3.3764e-08 au
q 2.185141804054372 1.8977e-07 au
i 7.673568918591273 8.1212e-06 deg
node 65.05934553596234 5.0149e-05 deg
peri 2.418251591755822 6.6632e-05 deg
M 242.3432591322384 5.0579e-05 deg
tp 2459058.328805515233
(2020-Jul-27.82880552)
0.00020423 TDB
period 1400.84085934973
3.84
2.8956e-05
7.928e-08
d
yr
n .2569885062940781 5.312e-09 deg/d
Q 2.715168458260135 3.7415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      3977 days (10.89 yr)  
   first obs. used      2008-10-01  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:12  

Additional Information
 Earth MOID = 1.19876 au 
 Jupiter MOID = 2.55127 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457138.5 (2015-Apr-26.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080642425041109 7.5336e-08  
q 2.185639986448952 1.9008e-07 au
tp 2457653.525816653238
(2016-Sep-22.02581665)
0.00018231 TDB
node 65.0862289997653 5.0179e-05 deg
peri 1.572084160101328 6.6706e-05 deg
i 7.672063665847674 8.1185e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      3977 days (10.89 yr)  
   first obs. used      2008-10-01  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:12  

Additional Information
 Jupiter MOID = 2.55127 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.675543811967616E-15 -1.413944143956708E-14 -2.605735283549863E-12 6.230756728723902E-15 -5.218628689104443E-13 1.825518621603602E-15
q -1.413944143956708E-14 3.613062718645951E-14 1.045243414080496E-11 -2.841671799777202E-14 2.212238453374271E-12 2.797714594603188E-15
tp -2.605735283549863E-12 1.045243414080496E-11 3.323581445573388E-8 -1.05038838129228E-10 8.035039194373491E-9 5.24621554818048E-11
node 6.230756728723902E-15 -2.841671799777202E-14 -1.05038838129228E-10 2.517934852524255E-9 -2.5197102235217E-9 -4.05144450749548E-11
peri -5.218628689104443E-13 2.212238453374271E-12 8.035039194373491E-9 -2.5197102235217E-9 4.44975554226421E-9 5.272272543234101E-11
i 1.825518621603602E-15 2.797714594603188E-15 5.24621554818048E-11 -4.05144450749548E-11 5.272272543234101E-11 6.590931603899594E-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 16.8   n/a MPO456092  

441584 (2008 US97)          Discovered 2008-Oct-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 US97 = 2008 TP162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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