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22809 Kensiequade (1999 RL13)
Classification: Main-belt Asteroid          SPK-ID: 2022809
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914260400545298 2.8601e-08  
a 2.345851829174848 8.1488e-09 au
q 1.896794702961231 6.652e-08 au
i 2.156466298948824 3.9275e-06 deg
node 345.1283026784781 8.6252e-05 deg
peri 101.5793325561594 8.6924e-05 deg
M 251.5668378850053 1.1655e-05 deg
tp 2459595.783708067633
(2022-Jan-16.28370807)
4.3564e-05 TDB
period 1312.348843552444
3.59
6.8381e-06
1.872e-08
d
yr
n .274317306536807 1.4293e-09 deg/d
Q 2.794908955388464 9.7087e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1753  
   data-arc span      10112 days (27.69 yr)  
   first obs. used      1992-11-15  
   last obs. used      2020-07-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:18  

Additional Information
 Earth MOID = .914199 au 
 Jupiter MOID = 2.41963 au 
 T_jup = 3.535 
[ 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 14.64   n/a E2021B10  
diameter diameter 2.729 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.287 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.412   0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22809 Kensiequade           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Mackensie Kathryn Quade (b. 1991) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the St. John the Baptist School, New Brighton, Minnesota.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

[ show close-approach data ]
Alternate Designations
 1999 RL13 = 2001 AK18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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