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20379 Christijohns (1998 KS47)
Classification: Main-belt Asteroid          SPK-ID: 2020379
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 .07457499218006276 4.0063e-08  
a 2.657028834881753 1.2262e-08 au
q 2.458880930298245 1.0737e-07 au
i 4.530998143251511 4.0099e-06 deg
node 147.6988588431888 5.2297e-05 deg
peri 28.97667219900496 5.8261e-05 deg
M 143.0565457880499 2.5332e-05 deg
tp 2458571.865717026828
(2019-Mar-29.36571703)
0.00011091 TDB
period 1581.950274443481
4.33
1.0951e-05
2.998e-08
d
yr
n .2275672034803024 1.5753e-09 deg/d
Q 2.855176739465261 1.3177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1380  
   data-arc span      14785 days (40.48 yr)  
   first obs. used      1980-02-19  
   last obs. used      2020-08-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:01  

Additional Information
 Earth MOID = 1.46393 au 
 Jupiter MOID = 2.10501 au 
 T_jup = 3.379 
[ 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 14.5   n/a MPO337430  
diameter diameter 7.023 km 0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20379 Christijohns           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Christine Elizabeth Johns (b. 1990) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her botany and zoology project. She attends the Providence Christian School, Cape Coral, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1998 KS47 = 1980 DB = 1993 FC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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