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23729 Kemeisha (1998 HH80)
Classification: Main-belt Asteroid          SPK-ID: 2023729
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883283994700216 3.8041e-08  
a 2.293944329361604 7.854e-09 au
q 1.861929465339601 9.0193e-08 au
i 5.885029783829574 4.1327e-06 deg
node 20.44803031720945 3.4499e-05 deg
peri 339.6961338018974 3.6085e-05 deg
M 357.9750734170082 1.3057e-05 deg
tp 2459007.638048901396
(2020-Jun-07.13804890)
4.6047e-05 TDB
period 1269.032480528712
3.47
6.5174e-06
1.784e-08
d
yr
n .2836806823494499 1.4569e-09 deg/d
Q 2.725959193383607 9.3332e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1614  
   data-arc span      17851 days (48.87 yr)  
   first obs. used      1971-09-16  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:02:48  

Additional Information
 Earth MOID = .860353 au 
 Jupiter MOID = 2.72658 au 
 T_jup = 3.566 
[ 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 14.4   n/a MPO384955  

23729 Kemeisha           Discovered 1998 Apr. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Kemeisha Latoya Nastasia Patterson (b. 1989) was awarded second place in the 2007 Intel International Science and Engineering Fair for her environmental management team project. She attends the Uniondale High School, Uniondale, New York, 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: 20070828/MPCPages.arcLast Updated: 2007-08-30

Alternate Designations
 1998 HH80 = 1971 SK = 1992 XP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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