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7142 Spinoza (1994 PC19)
Classification: Main-belt Asteroid          SPK-ID: 2007142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054795515850386 3.4766e-08  
a 3.162820447964471 1.6895e-08 au
q 2.829207565369188 1.1172e-07 au
i .3292932110795816 3.5711e-06 deg
node 114.3086481542585 0.00073647 deg
peri 116.0048968923599 0.00073672 deg
M 309.2406174656049 2.0225e-05 deg
tp 2459290.183703003746
(2021-Mar-16.68370300)
0.00011568 TDB
period 2054.5193395661
5.62
1.6462e-05
4.507e-08
d
yr
n .1752234661738592 1.404e-09 deg/d
Q 3.496433330559755 1.8677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2337  
   data-arc span      25840 days (70.75 yr)  
   first obs. used      1949-07-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:42:54  

Additional Information
 Earth MOID = 1.81877 au 
 Jupiter MOID = 1.49056 au 
 T_jup = 3.196 
[ 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 12.9   n/a MPO384819  
diameter diameter 20.287 km 0.608 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.375 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.036   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

7142 Spinoza (1994 PC19)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1994 PC19 = 1949 OZ = 1987 HA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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