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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09279599763602263 5.2687e-08  
a 2.424766125683512 1.7842e-08 au
q 2.199757534016677 1.3384e-07 au
i 4.938113497218993 7.3414e-06 deg
node 23.68484206311561 6.5066e-05 deg
peri 38.43053709694674 8.5891e-05 deg
M 278.2090367108185 5.2323e-05 deg
tp 2458913.832925481806
(2020-Mar-05.33292548)
0.00020048 TDB
period 1379.12366644507
3.78
1.5222e-05
4.168e-08
d
yr
n .2610353289984228 2.8811e-09 deg/d
Q 2.649774717350347 1.9497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6965 days (19.07 yr)  
   first obs. used      2000-10-06  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57668  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:09:55  

Additional Information
 Earth MOID = 1.21433 au 
 Jupiter MOID = 2.60068 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457585.5 (2016-Jul-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09213365169324042 5.2993e-08  
q 2.201638339974113 1.3454e-07 au
tp 2457530.578565527286
(2016-May-22.07856553)
0.00020285 TDB
node 23.71784334083958 6.4978e-05 deg
peri 37.514098588511 8.6193e-05 deg
i 4.942354703176376 7.3465e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6965 days (19.07 yr)  
   first obs. used      2000-10-06  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57668  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:09:55  

Additional Information
 Jupiter MOID = 2.60068 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.808276863069985E-15 -7.083375444891891E-15 -3.44113868734837E-12 -2.29882008424637E-14 -9.18652844975114E-13 -1.271270453339402E-15
q -7.083375444891891E-15 1.810104040936749E-14 8.21156469384886E-12 5.321174044759679E-14 2.19264710168696E-12 4.311918759140207E-15
tp -3.44113868734837E-12 8.21156469384886E-12 4.11473146691133E-8 1.754483357500392E-10 1.151293758986735E-8 -2.313461295442671E-11
node -2.29882008424637E-14 5.321174044759679E-14 1.754483357500392E-10 4.22219183165168E-9 -4.156105294442405E-9 -1.501788989757036E-10
peri -9.18652844975114E-13 2.19264710168696E-12 1.151293758986735E-8 -4.156105294442405E-9 7.429309832389284E-9 1.431137088545619E-10
i -1.271270453339402E-15 4.311918759140207E-15 -2.313461295442671E-11 -1.501788989757036E-10 1.431137088545619E-10 5.397124958978687E-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 18.0   n/a MPO397573  

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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