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100551 (1997 EM42)
Classification: Main-belt Asteroid          SPK-ID: 2100551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02709856362221868 6.0772e-08  
a 3.080546276447869 2.9511e-08 au
q 2.997067897184358 1.9399e-07 au
i 9.271871566136269 6.4578e-06 deg
node 323.7864584805125 3.4757e-05 deg
peri 6.742355170859204 0.00011146 deg
M 291.7143629025062 0.00010798 deg
tp 2459375.099244903469
(2021-Jun-09.59924490)
0.00059392 TDB
period 1974.876912588668
5.41
2.8379e-05
7.77e-08
d
yr
n .1822898418150588 2.6195e-09 deg/d
Q 3.164024655711381 3.0311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      584  
   data-arc span      10754 days (29.44 yr)  
   first obs. used      1991-01-11  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:35  

Additional Information
 Earth MOID = 1.98556 au 
 Jupiter MOID = 2.00317 au 
 T_jup = 3.207 
[ 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 14.41   n/a E2021B55  
diameter diameter 4.646 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.187   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100551 (1997 EM42)          Discovered 1997-Mar-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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