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23928 Darbywoodard (1998 ST160)
Classification: Main-belt Asteroid          SPK-ID: 2023928
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07133177424760211 5.5838e-08  
a 2.982554121000836 3.0796e-08 au
q 2.769803243760349 1.6229e-07 au
i 2.482777543547602 6.4629e-06 deg
node 183.6250008808636 0.00013136 deg
peri 117.5262080954097 0.00014005 deg
M 199.6934696570836 5.0449e-05 deg
tp 2458238.279328076013
(2018-Apr-29.77932808)
0.00026669 JED
period 1881.399076270954
5.15
2.9139e-05
7.978e-08
d
yr
n .191346963300068 2.9636e-09 deg/d
Q 3.195304998241322 3.2992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      9022 days (24.70 yr)  
   first obs. used      1991-04-08  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52743  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:54:19  

Additional Information
 Earth MOID = 1.75361 au 
 Jupiter MOID = 1.94936 au 
 T_jup = 3.254 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO319382  

23928 Darbywoodard           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Darby Elizabeth Woodard (b. 1993) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochem, medicine, health, and microbiology project. She attends the Mitchell Road Christian School, Greenville, South Carolina.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1998 ST160 = 1991 GF4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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