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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07036920480247302 5.324e-08  
a 2.984736987185179 2.8415e-08 au
q 2.774703418852429 1.574e-07 au
i 2.485351293322634 5.9294e-06 deg
node 183.593894518704 0.00011943 deg
peri 117.5027553248269 0.0001279 deg
M 237.9350254318354 4.9495e-05 deg
tp 2458239.125259620873
(2018-Apr-30.62525962)
0.00026256 JED
period 1883.464886441512
5.16
2.6896e-05
7.364e-08
d
yr
n .1911370913211762 2.7294e-09 deg/d
Q 3.19477055551793 3.0414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      9124 days (24.98 yr)  
   first obs. used      1991-04-08  
   last obs. used      2016-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53811  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:42:10  

Additional Information
 Earth MOID = 1.75999 au 
 Jupiter MOID = 1.94941 au 
 T_jup = 3.253 
[ 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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