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23060 Shepherd (1999 XV46)
Classification: Main-belt Asteroid          SPK-ID: 2023060
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08468296772926263 5.946e-08  
a 2.599247537472286 1.4122e-08 au
q 2.379135542136155 1.4701e-07 au
i 1.862309239198488 4.8961e-06 deg
node 25.08106917620763 0.00012879 deg
peri 169.6626247300213 0.00013095 deg
M 194.535109586823 2.4499e-05 deg
tp 2459704.014809213161
(2022-May-04.51480921)
0.00010533 TDB
period 1530.628828172051
4.19
1.2474e-05
3.415e-08
d
yr
n .2351974517753784 1.9168e-09 deg/d
Q 2.819359532808417 1.5318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      14499 days (39.70 yr)  
   first obs. used      1980-03-16  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:37:05  

Additional Information
 Earth MOID = 1.37784 au 
 Jupiter MOID = 2.13629 au 
 T_jup = 3.410 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO347699  

23060 Shepherd           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Karen Shepherd mentored a finalist in the 2005 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Plano Senior High School, Plano, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070303/MPCPages.arcLast Updated: 2010-04-12

Alternate Designations
 1999 XV46 = 1980 FL1 = 1988 DS2 = 1999 XA119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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