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100214 (1994 PJ4)
Classification: Main-belt Asteroid          SPK-ID: 2100214
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1239717280072184 4.3942e-08  
a 2.378110703403195 8.3826e-09 au
q 2.083292210109839 1.055e-07 au
i 1.292190856545171 4.7596e-06 deg
node 227.1837913335908 0.00016728 deg
peri 178.5597633034975 0.00016802 deg
M 3.018162121656727 1.5033e-05 deg
tp 2459189.269823244067
(2020-Dec-05.76982324)
5.5934e-05 TDB
period 1339.511752243725
3.67
7.0824e-06
1.939e-08
d
yr
n .2687546409331523 1.421e-09 deg/d
Q 2.672929196696551 9.4218e-09 au
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      9683 days (26.51 yr)  
   first obs. used      1994-08-10  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:08  

Additional Information
 Earth MOID = 1.09168 au 
 Jupiter MOID = 2.67778 au 
 T_jup = 3.529 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.76   n/a E2021B55  
diameter diameter 2.983 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100214 (1994 PJ4)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1994 PJ4 = 1998 TN11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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