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JPL Small-Body Database Browser
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17765 (1998 EZ2)
Classification: Main-belt Asteroid          SPK-ID: 2017765
[ 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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677499289512 6.1686e-08  
a 2.516933850102614 1.2579e-08 au
q 2.09471837557303 1.5663e-07 au
i 6.330732278674922 3.985e-06 deg
node 43.69325674719666 6.2052e-05 deg
peri 243.0917051929984 6.3596e-05 deg
M 87.81274351182701 1.4427e-05 deg
tp 2458644.736675818996
(2019-Jun-10.23667582)		 5.8864e-05 TDB
period 1458.498978430297
3.99		 1.0934e-05
2.994e-08		 d
yr
n .2468291067213831 1.8504e-09 deg/d
Q 2.939149324632197 1.4689e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1535  
   data-arc span      25462 days (69.71 yr)  
   first obs. used      1950-03-21  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48729  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:22:25  

Additional Information
 Earth MOID = 1.08764 au 
 Jupiter MOID = 2.2367 au 
 T_jup = 3.430 
[ 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 13.8   n/a MPO502304  
diameter diameter 4.938 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.166   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17765 (1998 EZ2)          Discovered 1998-Mar-01 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EZ2 = 1987 MX 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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