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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681183157326942 6.1626e-08  
a 2.517782587065415 1.2707e-08 au
q 2.094497219146872 1.5668e-07 au
i 6.331162958538543 3.9852e-06 deg
node 43.7014066591211 6.2037e-05 deg
peri 243.0919872486666 6.3573e-05 deg
M 349.0748659246403 1.4507e-05 deg
tp 2458644.784326083525
(2019-Jun-10.28432608)		 5.8743e-05 TDB
period 1459.236772757337
4.00		 1.1047e-05
3.025e-08		 d
yr
n .2467043092121048 1.8677e-09 deg/d
Q 2.941067954983958 1.4844e-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 = 1.08683 au 
 Jupiter MOID = 2.23403 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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