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355256 (2007 KN4)
Classification: Amor [NEO]          SPK-ID: 2355256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 160 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6311868275481782 2.3012e-08  
a 3.342077427013961 2.2066e-08 au
q 1.232602178436641 8.1901e-08 au
i 12.54012103644664 4.637e-06 deg
node 232.44962275673 1.6297e-05 deg
peri 51.17839109834776 2.2448e-05 deg
M 51.34507755147375 2.561e-06 deg
tp 2458682.212560185262
(2019-Jul-17.71256019)
1.6985e-05 TDB
period 2231.635120590383
6.11
2.2101e-05
6.051e-08
d
yr
n .16131669405918 1.5976e-09 deg/d
Q 5.451552675591281 3.5994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      8773 days (24.02 yr)  
   first obs. used      1995-11-23  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-10 06:05:06  

Additional Information
 Earth MOID = .274212 au 
 Jupiter MOID = .551916 au 
 T_jup = 2.770 
[ 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 16.8   n/a MPO494847  
rotation period rot_per 7.152 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 47-1, in progress. (NEAs) http://www.planetarysciences.org/lightcurves.html]

355256 (2007 KN4)          Discovered 2007-May-20 by CSS at Catalina
Reference: 20130225/Numbers.arcLast Updated: 2013-02-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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