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201187 (2002 PK70)
Classification: Main-belt Asteroid          SPK-ID: 2201187
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2422783763126983 4.679e-08  
a 3.019999648254549 2.4967e-08 au
q 2.288319037010517 1.401e-07 au
i 11.13757052264273 6.2253e-06 deg
node 208.4819782126924 2.5949e-05 deg
peri 202.2850355777509 2.9333e-05 deg
M 81.47234381649372 1.2333e-05 deg
tp 2458566.673102458656
(2019-Mar-24.17310246)
6.5228e-05 TDB
period 1916.941084531144
5.25
2.3772e-05
6.508e-08
d
yr
n .1877991988929857 2.3289e-09 deg/d
Q 3.751680259498581 3.1016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      7250 days (19.85 yr)  
   first obs. used      2000-03-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:58:44  

Additional Information
 Earth MOID = 1.30251 au 
 Jupiter MOID = 1.67138 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457157.5 (2015-May-15.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405952732520466 4.6387e-08  
q 2.295802716519592 1.386e-07 au
tp 2456651.021488274328
(2013-Dec-24.52148827)
6.9806e-05 TDB
node 208.510050517285 2.5973e-05 deg
peri 202.6371294437782 2.9419e-05 deg
i 11.12567677457109 6.2211e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      7250 days (19.85 yr)  
   first obs. used      2000-03-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:58:44  

Additional Information
 Jupiter MOID = 1.67138 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.151798527773683E-15 -6.36910284444429E-15 -1.592538120658268E-12 8.817610744434269E-15 -3.716362716157764E-13 4.262883118613226E-15
q -6.36910284444429E-15 1.921104162051718E-14 4.346888601593593E-12 -2.718343371539917E-14 1.057579046429366E-12 -1.209070560521376E-14
tp -1.592538120658268E-12 4.346888601593593E-12 4.872923822331162E-9 -1.174349707322275E-11 9.868735648227445E-10 -1.260218359144216E-11
node 8.817610744434269E-15 -2.718343371539917E-14 -1.174349707322275E-11 6.746175054550396E-10 -6.640260328354522E-10 -6.597425354610625E-11
peri -3.716362716157764E-13 1.057579046429366E-12 9.868735648227445E-10 -6.640260328354522E-10 8.654604562461564E-10 6.232599455466413E-11
i 4.262883118613226E-15 -1.209070560521376E-14 -1.260218359144216E-11 -6.597425354610625E-11 6.232599455466413E-11 3.870262550754831E-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 15.2   n/a MPO454423  
diameter diameter 6.892 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 107.127 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 0.045   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201187 (2002 PK70)          Discovered 2002-Aug-11 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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