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14237 (1999 YU9)
Classification: Main-belt Asteroid          SPK-ID: 2014237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04717599128148602 5.0354e-08  
a 3.089366506546862 1.748e-08 au
q 2.943622579168693 1.5708e-07 au
i 14.85420557675555 5.5882e-06 deg
node 342.9987149506688 1.3788e-05 deg
peri 18.80388710729381 4.3386e-05 deg
M 27.64758123168385 3.9965e-05 deg
tp 2458848.179898802485
(2019-Dec-30.67989880)
0.00022037 TDB
period 1983.364691890834
5.43
1.6833e-05
4.609e-08
d
yr
n .1815097351848061 1.5405e-09 deg/d
Q 3.235110433925031 1.8304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1901  
   data-arc span      12106 days (33.14 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:56:00  

Additional Information
 Earth MOID = 1.94138 au 
 Jupiter MOID = 2.03461 au 
 T_jup = 3.172 
[ 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 12.6   n/a MPO502277  
diameter diameter 7.758 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14237 (1999 YU9)          Discovered 1999-Dec-31 by Kobayashi, T. at Oizumi
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 YU9 = 1987 SM14 = 1995 EQ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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