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JPL Small-Body Database Browser
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19789 Susanjohnson (2000 QP149)
Classification: Main-belt Asteroid          SPK-ID: 2019789
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1560912645667519 4.0363e-08  
a 2.259879890404024 7.5543e-09 au
q 1.907132380541888 8.9652e-08 au
i 5.484822863374916 4.4909e-06 deg
node 210.1077507787838 3.5243e-05 deg
peri 153.4516818826393 3.7303e-05 deg
M 302.2180565782011 1.3557e-05 deg
tp 2459199.666415483342
(2020-Dec-16.16641548)
4.7098e-05 TDB
period 1240.870509505114
3.40
6.2219e-06
1.703e-08
d
yr
n .2901189102669349 1.4547e-09 deg/d
Q 2.612627400266162 8.7334e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1680  
   data-arc span      11374 days (31.14 yr)  
   first obs. used      1988-03-10  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4804  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:31:25  

Additional Information
 Earth MOID = .907075 au 
 Jupiter MOID = 2.85632 au 
 T_jup = 3.598 
[ 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 14.4   n/a MPO435883  
diameter diameter 3.131 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.376   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19789 Susanjohnson           Discovered 2000 Aug. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Susan Johnson mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, a middle school science competition. She teaches at the Moore Middle School, Redlands, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031010/MPCPages.arcLast Updated: 2003-10-10

[ show close-approach data ]
Alternate Designations
 2000 QP149 = 1999 JR23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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