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

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105570823914098 5.4905e-08  
a 3.163254835919374 2.8532e-08 au
q 2.829307416641111 1.775e-07 au
i .3292971772063688 4.9071e-06 deg
node 114.2245626631647 0.0010542 deg
peri 115.4599054985406 0.0010544 deg
M 64.76734620385952 2.8281e-05 deg
tp 2457230.796723448126
(2015-Jul-27.29672345)
0.00016156 JED
period 2054.942611663521
5.63
2.7803e-05
7.612e-08
d
yr
n .1751873740690852 2.3702e-09 deg/d
Q 3.497202255197636 3.1544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      24358 days (66.69 yr)  
   first obs. used      1949-07-30  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52069  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:58:10  

Additional Information
 Earth MOID = 1.81879 au 
 Jupiter MOID = 1.48759 au 
 T_jup = 3.196 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a MPO256917  
rotation period rot_per 12.3749 h n/a LCDB (Rev. 2016-February); 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. (2016) Astron. J. 150, A75.]

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

[ show close-approach data ]
Alternate Designations
 1994 PC19 = 1949 OZ = 1987 HA1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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