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175647 (4091 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2175647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2558694314107089 4.4707e-08  
a 2.614278111599314 9.0341e-09 au
q 1.945364257634935 1.1729e-07 au
i 2.827568866369111 4.5916e-06 deg
node 224.2072732426905 0.00010021 deg
peri 142.4272445690619 0.00010073 deg
M 91.61260035782882 8.3124e-06 deg
tp 2458807.602905986857
(2019-Nov-20.10290599)
3.5405e-05 TDB
period 1543.92467075785
4.23
8.0029e-06
2.191e-08
d
yr
n .2331719978431919 1.2086e-09 deg/d
Q 3.283191965563693 1.1346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      22078 days (60.45 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56396  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:15  

Additional Information
 Earth MOID = .943541 au 
 Jupiter MOID = 2.19054 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457650.5 (2016-Sep-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2584433038952847 4.5082e-08  
q 1.93670350783265 1.1852e-07 au
tp 2457262.229287141944
(2015-Aug-27.72928714)
3.3964e-05 TDB
node 224.2896142678539 0.00010045 deg
peri 141.9678585861999 0.00010094 deg
i 2.823580847412757 4.5981e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      22078 days (60.45 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56396  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:15  

Additional Information
 Jupiter MOID = 2.19054 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.032428260675039E-15 -5.334785224518643E-15 -2.424179351490857E-13 -5.298093383895701E-15 -4.955427135362792E-14 -2.854276425104991E-15
q -5.334785224518643E-15 1.404687445202105E-14 6.108693787780372E-13 1.734262160614288E-14 1.214656279851022E-13 7.483550296895676E-15
tp -2.424179351490857E-13 6.108693787780372E-13 1.153548371573334E-9 2.807194301280013E-12 3.580958946646375E-10 1.169879591315122E-12
node -5.298093383895701E-15 1.734262160614288E-14 2.807194301280013E-12 1.009002211344655E-8 -1.007652821843923E-8 -1.315175866714142E-10
peri -4.955427135362792E-14 1.214656279851022E-13 3.580958946646375E-10 -1.007652821843923E-8 1.018796480716003E-8 1.316890644649633E-10
i -2.854276425104991E-15 7.483550296895676E-15 1.169879591315122E-12 -1.315175866714142E-10 1.316890644649633E-10 2.114275926877015E-11

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 16.61   n/a MPCxxxxx  

175647 (4091 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 4091 P-L = 1998 RK56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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