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146359 (2001 PG4)
Classification: Main-belt Asteroid          SPK-ID: 2146359
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330761919371804 4.0982e-08  
a 2.631342571532473 1.8105e-08 au
q 2.018039265277496 1.1255e-07 au
i 4.464728224947383 3.813e-06 deg
node 49.52629449316282 6.4338e-05 deg
peri 319.9437038142424 6.4999e-05 deg
M 106.0308656263325 1.1142e-05 deg
tp 2458541.307991581064
(2019-Feb-26.80799158)
4.5696e-05 TDB
period 1559.066051704127
4.27
1.6091e-05
4.405e-08
d
yr
n .2309074715638278 2.3832e-09 deg/d
Q 3.24464587778745 2.2325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      7214 days (19.75 yr)  
   first obs. used      2000-04-29  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:36:51  

Additional Information
 Earth MOID = 1.02024 au 
 Jupiter MOID = 2.22091 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456963.5 (2014-Nov-02.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331871134814071 4.1458e-08  
q 2.017390751548328 1.1398e-07 au
tp 2456976.693416689474
(2014-Nov-15.19341669)
3.9654e-05 TDB
node 49.64381690229219 6.4568e-05 deg
peri 318.9219649278502 6.5209e-05 deg
i 4.460201837934333 3.8045e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      7214 days (19.75 yr)  
   first obs. used      2000-04-29  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:36:51  

Additional Information
 Jupiter MOID = 2.22091 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.718748117854092E-15 -4.693114323997054E-15 -6.716706661191845E-13 -6.420720934119428E-15 -1.616767718745068E-13 -1.323562281947519E-15
q -4.693114323997054E-15 1.299114473271802E-14 1.882803116293204E-12 1.886358939665365E-14 4.527523614985921E-13 3.931864415547551E-15
tp -6.716706661191845E-13 1.882803116293204E-12 1.572418108561078E-9 4.51976062868462E-12 3.940417883872523E-10 1.10908316240712E-12
node -6.420720934119428E-15 1.886358939665365E-14 4.51976062868462E-12 4.169080080724624E-9 -4.155362319215409E-9 -2.149251352854108E-11
peri -1.616767718745068E-13 4.527523614985921E-13 3.940417883872523E-10 -4.155362319215409E-9 4.252258199880233E-9 2.170132892358596E-11
i -1.323562281947519E-15 3.931864415547551E-15 1.10908316240712E-12 -2.149251352854108E-11 2.170132892358596E-11 1.447424527748187E-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 15.6   n/a MPO417787  
diameter diameter 3.875 km 0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146359 (2001 PG4)          Discovered 2001-Aug-06 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2001 PG4 = 2003 AL52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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