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17390 (1981 EZ37)
Classification: Main-belt Asteroid          SPK-ID: 2017390
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05647125989082916 4.8614e-08  
a 3.121293928039167 2.3187e-08 au
q 2.945030527433201 1.5125e-07 au
i 7.338923612002895 5.4871e-06 deg
node 190.0665957717738 3.6894e-05 deg
peri 212.1099981555997 5.6072e-05 deg
M 168.450979720341 4.268e-05 deg
tp 2458058.021463539200
(2017-Oct-31.52146354)
0.00023707 TDB
period 2014.189966061192
5.51
2.2444e-05
6.145e-08
d
yr
n .1787319002010474 1.9916e-09 deg/d
Q 3.297557328645135 2.4496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      921  
   data-arc span      15095 days (41.33 yr)  
   first obs. used      1978-10-03  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:03:20  

Additional Information
 Earth MOID = 1.95535 au 
 Jupiter MOID = 1.98045 au 
 T_jup = 3.201 
[ 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 14.3   n/a MPO467892  
diameter diameter 7.860 km 0.411 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17390 (1981 EZ37)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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