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66269 (1999 JN3)
Classification: Mars-crossing Asteroid          SPK-ID: 2066269
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2853061832986376 4.0521e-08  
a 2.304604772379485 9.9278e-09 au
q 1.647086780760068 9.5117e-08 au
i 20.59855826098899 5.9991e-06 deg
node 222.5432102484571 1.2418e-05 deg
peri 112.9090698766533 1.5522e-05 deg
M 324.019121958175 1.1498e-05 deg
tp 2459328.221017189018
(2021-Apr-23.72101719)
4.1229e-05 TDB
period 1277.888942415438
3.50
8.2574e-06
2.261e-08
d
yr
n .2817146217100336 1.8204e-09 deg/d
Q 2.962122763998901 1.276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      24177 days (66.19 yr)  
   first obs. used      1954-06-02  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4957  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:20:40  

Additional Information
 Earth MOID = .744508 au 
 Jupiter MOID = 2.79442 au 
 T_jup = 3.452 
[ 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 14.4   n/a MPO366011  
diameter diameter 3.700 km 0.762 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.283   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

66269 (1999 JN3)          Discovered 1999-May-06 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JN3 = 2000 US29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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