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441619 (2008 US342)
Classification: Main-belt Asteroid          SPK-ID: 2441619
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09323570575733094 4.804e-08  
a 2.425066947947179 1.5592e-08 au
q 2.198964119546547 1.195e-07 au
i 4.938015032581554 7.1153e-06 deg
node 23.67249636203799 6.086e-05 deg
peri 38.26659970073679 7.9551e-05 deg
M 126.1015025305695 4.9215e-05 deg
tp 2458913.327969525545
(2020-Mar-04.82796953)
0.00018745 TDB
period 1379.380320457614
3.78
1.3303e-05
3.642e-08
d
yr
n .2609867595331277 2.5171e-09 deg/d
Q 2.65116977634781 1.7046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      7492 days (20.51 yr)  
   first obs. used      2000-10-06  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:57:51  

Additional Information
 Earth MOID = 1.21346 au 
 Jupiter MOID = 2.5992 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457944.5 (2017-Jul-10.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09206284885142796 4.8449e-08  
q 2.202446973029195 1.2043e-07 au
tp 2457531.238730443107
(2016-May-22.73873044)
0.00018796 TDB
node 23.71897631122695 6.0773e-05 deg
peri 37.73110575242054 7.9998e-05 deg
i 4.94217513744772 7.1203e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      7492 days (20.51 yr)  
   first obs. used      2000-10-06  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:57:51  

Additional Information
 Jupiter MOID = 2.5992 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.347329353463367E-15 -5.794977075237031E-15 -5.028990975226806E-12 -1.939533988750841E-14 -1.405665028246451E-12 1.624429576749052E-15
q -5.794977075237031E-15 1.450233379981302E-14 1.265887892634937E-11 4.626662581128271E-14 3.554256329718903E-12 -3.523288098377976E-15
tp -5.028990975226806E-12 1.265887892634937E-11 3.532788434764015E-8 1.059411778640913E-10 9.799840931137417E-9 -2.046269715836998E-11
node -1.939533988750841E-14 4.626662581128271E-14 1.059411778640913E-10 3.693363027969377E-9 -3.649687890321246E-9 -1.880067685417462E-10
peri -1.405665028246451E-12 3.554256329718903E-12 9.799840931137417E-9 -3.649687890321246E-9 6.399628529233921E-9 1.817011362300915E-10
i 1.624429576749052E-15 -3.523288098377976E-15 -2.046269715836998E-11 -1.880067685417462E-10 1.817011362300915E-10 5.069919297996473E-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 17.95   n/a MPCxxxxx  

441619 (2008 US342)          Discovered 2008-Oct-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 US342 = 2004 TL233 = 2006 DH187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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