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13765 Nansmith (1998 SM138)
Classification: Main-belt Asteroid          SPK-ID: 2013765
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 .06689933732806257 3.9676e-08  
a 2.868020550458254 1.5162e-08 au
q 2.676151876189331 1.1523e-07 au
i .9682516813342711 4.0974e-06 deg
node 282.647547224993 0.00027006 deg
peri 128.36350818331 0.00027209 deg
M 138.0355028469159 3.4671e-05 deg
tp 2458320.263210858229
(2018-Jul-20.76321086)
0.00016881 TDB
period 1774.074343486979
4.86
1.4068e-05
3.852e-08
d
yr
n .2029227249250517 1.6092e-09 deg/d
Q 3.059889224727176 1.6176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      9719 days (26.61 yr)  
   first obs. used      1993-09-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:55:28  

Additional Information
 Earth MOID = 1.68674 au 
 Jupiter MOID = 2.18805 au 
 T_jup = 3.296 
[ 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 14.6   n/a MPO389722  
diameter diameter 3.501 km 1.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.526 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Yoshida, F.; Dermawan, B.; Nakamura, T.; Ito, T.; et al. (2005) ACM 2005, abstract.]
[Yoshida, F.; Ito, T.; Dermawan, B.; Nakamura, T.; et al. (2016) Icarus 269, 15-22.]
geometric albedo albedo 0.250   0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13765 Nansmith           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Nancy Smith mentored a finalist in the 2002 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Harry F. Byrd Middle School, Richmond, Virginia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021021/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 SM138 = 1993 SP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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