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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07238921438797707 5.7041e-08  
a 2.979675461066933 3.209e-08 AU
q 2.763979095309165 1.6688e-07 AU
i 2.482034629678626 6.9372e-06 deg
node 183.6685181239497 0.00013248 deg
peri 117.4208833125807 0.00014145 deg
M 123.1374138560669 5.0645e-05 deg
tp 2456357.901953583435
(2013-Mar-06.40195358)
0.00026332 JED
period 1878.675939876138
5.14
3.0349e-05
8.309e-08
d
yr
n .191624320277256 3.0956e-09 deg/d
Q 3.195371826824702 3.4413e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53802  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:58:52  

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 14.4 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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