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11418 (1999 JN118)
Classification: Main-belt Asteroid          SPK-ID: 2011418
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0439717731011149 3.5341e-08  
a 2.704933074839262 1.2377e-08 au
q 2.585992371418729 9.5053e-08 au
i 5.042648909085603 4.2244e-06 deg
node 199.3007948893083 4.1602e-05 deg
peri 227.2125749767576 6.356e-05 deg
M 118.7040620279532 4.6891e-05 deg
tp 2458664.707915561637
(2019-Jun-30.20791556)
0.00021183 TDB
period 1624.92459906207
4.45
1.1153e-05
3.054e-08
d
yr
n .2215487415279437 1.5206e-09 deg/d
Q 2.823873778259795 1.2921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1981  
   data-arc span      24900 days (68.17 yr)  
   first obs. used      1953-01-09  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:45:35  

Additional Information
 Earth MOID = 1.60128 au 
 Jupiter MOID = 2.31074 au 
 T_jup = 3.359 
[ 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 13.72   n/a E2021B10  
diameter diameter 9.146 km 1.803 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.077   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

11418 (1999 JN118)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JN118 = 1991 PV21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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