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20281 Kathartman (1998 FZ49)
Classification: Main-belt Asteroid          SPK-ID: 2020281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09911111658501749 3.4822e-08  
a 2.357566533432207 8.5896e-09 au
q 2.123905481880272 8.1736e-08 au
i 7.139607277432442 4.7622e-06 deg
node 4.204816466936516 2.6525e-05 deg
peri 68.55273973399444 3.5502e-05 deg
M 201.3960908426958 2.4747e-05 deg
tp 2459783.013172037083
(2022-Jul-22.51317204)
9.2389e-05 TDB
period 1322.191508693291
3.62
7.2259e-06
1.978e-08
d
yr
n .2722752321679818 1.488e-09 deg/d
Q 2.591227584984142 9.4409e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1617  
   data-arc span      12165 days (33.31 yr)  
   first obs. used      1987-04-01  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:28  

Additional Information
 Earth MOID = 1.14954 au 
 Jupiter MOID = 2.62688 au 
 T_jup = 3.536 
[ 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 14.46   n/a E2021B10  
diameter diameter 3.324 km 0.832 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.334   0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20281 Kathartman           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Katherine Hartman (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for her earth and space sciences project. She attends the Guilderland Central High School, Guilderland Center, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

Alternate Designations
 1998 FZ49 = 1987 GQ = 2000 QN180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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