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12443 Paulsydney (1996 EQ2)
Classification: Main-belt Asteroid          SPK-ID: 2012443
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2053224289824823 2.328e-08  
a 3.12064732171924 1.7152e-08 au
q 2.479908433626168 7.696e-08 au
i 17.46543313257966 4.1283e-07 deg
node 195.8589949736122 2.8561e-06 deg
peri 204.9882766731967 4.8507e-06 deg
M 283.6441399994389 5.613e-06 deg
tp 2459627.576164678751
(2022-Feb-17.07616468)
3.3486e-05 TDB
period 2013.564109987377
5.51
1.6601e-05
4.545e-08
d
yr
n .1787874536571159 1.474e-09 deg/d
Q 3.761386209812313 2.0674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      8980 days (24.59 yr)  
   first obs. used      1996-03-16  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:21:41  

Additional Information
 Earth MOID = 1.49555 au 
 Jupiter MOID = 1.72273 au 
 T_jup = 3.113 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.66   n/a E2021B10  
diameter diameter 8.944 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.28 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 0.221   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

12443 Paulsydney           Discovered 1996 Mar. 15 by the AMOS team at Haleakala.
With the gracious support of his family, Paul Sydney, a physicist on the AMOS team, has dedicated many long hours to demonstrating that U.S. Air Force assets could be applied successfully to following up minor planets. In return, the Air Force has benefited significantly from collaboration with the astronomical community.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1996 EQ2 = 1997 GX41 = 1998 MT10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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