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52143 (6635 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2052143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154058037006306 4.1722e-08  
a 2.442769996697229 1.0284e-08 au
q 1.916583162302876 1.0514e-07 au
i 3.093498817864626 4.3866e-06 deg
node 134.884617185551 7.1063e-05 deg
peri 171.758287526436 7.1619e-05 deg
M 312.7954705992171 1.1719e-05 deg
tp 2459383.353578553795
(2021-Jun-17.85357855)
4.603e-05 TDB
period 1394.512118116245
3.82
8.806e-06
2.411e-08
d
yr
n .2581548021872341 1.6302e-09 deg/d
Q 2.968956831091582 1.2499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      21789 days (59.66 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54527  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:15  

Additional Information
 Earth MOID = .899753 au 
 Jupiter MOID = 2.29001 au 
 T_jup = 3.466 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.75   n/a E2021B10  

52143 (6635 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 6635 P-L = 1998 QA9 = 2002 RT18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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