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17801 Zelkowitz (1998 FH69)
Classification: Main-belt Asteroid          SPK-ID: 2017801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1019532595113502 4.1387e-08  
a 3.125565230795631 1.6782e-08 au
q 2.80690366770067 1.2755e-07 au
i .8074782221991978 4.4659e-06 deg
node 47.34994900957688 0.00028835 deg
peri 149.3434477277729 0.00028901 deg
M 5.097167985039534 1.8417e-05 deg
tp 2458971.922928369277
(2020-May-02.42292837)
0.00010329 TDB
period 2018.325826665965
5.53
1.6255e-05
4.45e-08
d
yr
n .1783656509983214 1.4365e-09 deg/d
Q 3.444226793890591 1.8493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      10332 days (28.29 yr)  
   first obs. used      1992-02-27  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:15:04  

Additional Information
 Earth MOID = 1.80527 au 
 Jupiter MOID = 1.51212 au 
 T_jup = 3.207 
[ 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 MPO299091  
diameter diameter 8.069 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.090   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17801 Zelkowitz           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Rachel Lauren Zelkowitz (b. 1985) was awarded second place in the 2003 Intel International Science and Engineering Fair for her botany project. She attends the Lake Brantley High School, Altamonte Springs, Florida, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040614/MPCPages.arcLast Updated: 2009-12-11

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