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163348 (2002 NN4)
Classification: Aten [NEO, PHA]          SPK-ID: 2163348
[ 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 155 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .434615407333441 5.3896e-08  
a .875885524789575 1.3687e-09 au
q .4952121806556892 4.6609e-08 au
i 5.420558646793915 3.7306e-06 deg
node 259.4688480396087 1.1205e-05 deg
peri 222.1702113606232 1.1227e-05 deg
M 324.3351940266059 9.6723e-06 deg
tp 2459230.162436083841
(2021-Jan-15.66243608)		 8.0634e-06 TDB
period 299.4121711512709
0.82		 7.018e-07
1.921e-09		 d
yr
n 1.202355931676934 2.8182e-09 deg/d
Q 1.256558868923461 1.9635e-09 au
   Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      6617 days (18.12 yr)  
   first obs. used      2002-07-02  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:45  

Additional Information
 Earth MOID = .00659979 au 
 Jupiter MOID = 3.82842 au 
 T_jup = 6.676 
[ 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 20.08   n/a E2021B55  
diameter diameter 0.735 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 14.50 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
geometric albedo albedo 0.030   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

163348 (2002 NN4)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

[ show close-approach data ]
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