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385355 (2002 PQ87)
Classification: Mars-crossing Asteroid          SPK-ID: 2385355
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3630098096588357 6.3309e-08  
a 2.606280779877888 1.8617e-08 au
q 1.660175290056934 1.5913e-07 au
i 30.12116017482275 1.5193e-05 deg
node 146.2084629091064 1.3986e-05 deg
peri 119.7879604426212 3.0567e-05 deg
M 155.0686846011069 2.7253e-05 deg
tp 2458538.509387318246
(2019-Feb-24.00938732)
0.00011047 TDB
period 1536.84556735919
4.21
1.6467e-05
4.508e-08
d
yr
n .2342460476484955 2.5099e-09 deg/d
Q 3.552386269698841 2.5375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      6268 days (17.16 yr)  
   first obs. used      2002-07-09  
   last obs. used      2019-09-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60166  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:05  

Additional Information
 Earth MOID = .780065 au 
 Jupiter MOID = 2.24678 au 
 T_jup = 3.137 
[ 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 16.7   n/a MPO494961  
diameter diameter 1.130 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

385355 (2002 PQ87)          Discovered 2002-Aug-14 by LINEAR at Socorro
Reference: Last Updated: 2014-02-19

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