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13329 Davidhardy (1998 SB32)
Classification: Main-belt Asteroid          SPK-ID: 2013329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07663547893015289 3.9907e-08  
a 2.962769142231285 1.446e-08 au
q 2.735715910056912 1.1748e-07 au
i 6.462615181567288 4.0636e-06 deg
node 186.7818311430383 3.4948e-05 deg
peri 142.4369105147687 4.2854e-05 deg
M 203.3312341152534 2.6302e-05 deg
tp 2460207.134471219340
(2023-Sep-19.63447122)
0.00013811 TDB
period 1862.709570672473
5.10
1.3636e-05
3.733e-08
d
yr
n .1932668439933088 1.4148e-09 deg/d
Q 3.189822374405658 1.5568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1962  
   data-arc span      10096 days (27.64 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48382  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:14:03  

Additional Information
 Earth MOID = 1.72787 au 
 Jupiter MOID = 2.09616 au 
 T_jup = 3.251 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457281.5 (2015-Sep-16.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07754039079154322 4.0216e-08  
q 2.73310888294878 1.1857e-07 au
tp 2456467.295113865654
(2013-Jun-23.79511387)
0.00012807 TDB
node 186.8580467454615 3.5027e-05 deg
peri 139.855912761529 4.2627e-05 deg
i 6.452181043643873 4.0637e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1962  
   data-arc span      10096 days (27.64 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48382  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:14:03  

Additional Information
 Jupiter MOID = 2.09616 au 
 T_jup = 3.251 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.617287140797706E-15 -4.7381428906995E-15 5.81782465550008E-13 -3.795039905614072E-16 8.761698734886043E-14 7.673752068169954E-16
q -4.7381428906995E-15 1.405845881215676E-14 -1.341145597690633E-12 1.926512087360128E-15 -1.76062814286871E-13 -2.306144340623684E-15
tp 5.81782465550008E-13 -1.341145597690633E-12 1.640098465419664E-8 5.166475781087455E-12 3.128067274492971E-9 -1.915976052915099E-12
node -3.795039905614072E-16 1.926512087360128E-15 5.166475781087455E-12 1.226892099236419E-9 -1.218076007218125E-9 -2.427546684718279E-11
peri 8.761698734886043E-14 -1.76062814286871E-13 3.128067274492971E-9 -1.218076007218125E-9 1.817054926504025E-9 2.372445816270304E-11
i 7.673752068169954E-16 -2.306144340623684E-15 -1.915976052915099E-12 -2.427546684718279E-11 2.372445816270304E-11 1.651343102979456E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.61   n/a MPCxxxxx  
diameter diameter 11.163 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 65.152 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13329 Davidhardy           Discovered 1998 Sept. 20 by Spacewatch at Kitt Peak.
David A. Hardy (b. 1936) is a pioneer astronomical artist whose work has appeared in numerous books and magazines, as well as on stage and in film. His own books include Visions of Space and The Fires Within.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 SB32 = 1993 TQ21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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