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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07238919153432134 6.7626e-08  
a 2.979675474152951 3.8338e-08 AU
q 2.763979175544373 2.1013e-07 AU
i 2.482037519165085 8.8822e-06 deg
node 183.6684997277216 0.000138 deg
peri 117.4208774631729 0.00015183 deg
M 123.1374343948187 6.0324e-05 deg
tp 2456357.901842167845
(2013-Mar-06.40184217)
0.00031774 JED
period 1878.675952252177
5.14
3.6258e-05
9.927e-08
d
yr
n .1916243190149042 3.6983e-09 deg/d
Q 3.195371772761529 4.1113e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      8611 days (23.58 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54415  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:43:55  

Additional Information
 Earth MOID = 1.75076 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 14.3 mag n/a MPO267796  

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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