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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 157 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4345735883958143 5.3818e-08  
a .8758995532093292 1.37e-09 au
q .4952567412968605 4.654e-08 au
i 5.420188349458119 3.728e-06 deg
node 259.4659812726254 1.1206e-05 deg
peri 222.1742634521127 1.1228e-05 deg
M 199.993762684879 9.8324e-06 deg
tp 2459529.580460760222
(2021-Nov-11.08046076)		 8.2836e-06 TDB
period 299.4193643796935
0.82		 7.025e-07
1.923e-09		 d
yr
n 1.202327046367931 2.8209e-09 deg/d
Q 1.256542365121798 1.9654e-09 au
   Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      6928 days (18.97 yr)  
   first obs. used      2002-07-02  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-24 06:20:21  

Additional Information
 Earth MOID = .00695604 au 
 Jupiter MOID = 3.82832 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 20.09   n/a MPCxxxxx  
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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