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186645 (2003 NW8)
Classification: Main-belt Asteroid          SPK-ID: 2186645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2663783876172392 3.8804e-08  
a 3.049304567065014 2.3966e-08 au
q 2.237035733136352 1.1515e-07 au
i 4.607536318753976 6.018e-06 deg
node 18.88465358773804 5.358e-05 deg
peri 257.3078288967121 5.4941e-05 deg
M 108.9781564426725 1.0779e-05 deg
tp 2458611.742314683100
(2019-May-08.24231468)
5.6725e-05 TDB
period 1944.910554855836
5.32
2.2929e-05
6.278e-08
d
yr
n .1850984864579978 2.1822e-09 deg/d
Q 3.861573400993676 3.035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      9945 days (27.23 yr)  
   first obs. used      1993-09-19  
   last obs. used      2020-12-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56683  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:06  

Additional Information
 Earth MOID = 1.22452 au 
 Jupiter MOID = 1.33007 au 
 T_jup = 3.177 
[ 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 15.87   n/a E2021B55  

186645 (2003 NW8)          Discovered 2003-Jul-10 by Broughton, J. at Reedy Creek
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2003 NW8 = 2002 EV141 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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