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15645 (4163 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2015645
[ 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01412434922752517 4.4792e-08  
a 3.009532750214613 1.7875e-08 au
q 2.967025058638908 1.3387e-07 au
i 3.866744188883552 3.7215e-06 deg
node 228.3400773099924 7.3322e-05 deg
peri 86.83265644906041 0.00017683 deg
M 201.8989265836221 0.00016384 deg
tp 2459837.989470092632
(2022-Sep-15.48947009)		 0.00087055 TDB
period 1906.98394842217
5.22		 1.699e-05
4.652e-08		 d
yr
n .1887797746267673 1.6819e-09 deg/d
Q 3.052040441790318 1.8127e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      21759 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:13:33  

Additional Information
 Earth MOID = 1.95593 au 
 Jupiter MOID = 1.97381 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457106.5 (2015-Mar-25.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0125029228414877 4.3692e-08  
q 2.974352801170001 1.3049e-07 au
tp 2457898.391066961117
(2017-May-24.89106696)		 0.0010016 TDB
node 228.4156787005647 7.3393e-05 deg
peri 80.48250111543489 0.00020039 deg
i 3.863429617847749 3.7192e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      21759 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:13:33  

Additional Information
 Jupiter MOID = 1.97381 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.908967076597038E-15 -5.649167151559168E-15 1.064571189307185E-11 -1.461082485397317E-16 1.974880156492676E-12 1.401478183197108E-15
q -5.649167151559168E-15 1.702870499351122E-14 -2.561863904367391E-11 5.577615155725867E-16 -4.770852012158579E-12 -4.15922588432127E-15
tp 1.064571189307185E-11 -2.561863904367391E-11 1.00312275734619E-6 1.118241133469871E-10 1.868004115477144E-7 1.039924596749807E-11
node -1.461082485397317E-16 5.577615155725867E-16 1.118241133469871E-10 5.386590794001482E-9 -5.353080523019069E-9 -1.964692220346596E-11
peri 1.974880156492676E-12 -4.770852012158579E-12 1.868004115477144E-7 -5.353080523019069E-9 4.015806782303638E-8 2.156143008140374E-11
i 1.401478183197108E-15 -4.15922588432127E-15 1.039924596749807E-11 -1.964692220346596E-11 2.156143008140374E-11 1.383279834639253E-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 14.3   n/a MPO467863  
diameter diameter 4.010 km 1.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.638 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.252   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15645 (4163 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 4163 P-L = 2000 GF106 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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