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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04733730805416068 2.7833e-08  
a 3.090196881847818 1.5743e-08 au
q 2.943915280103781 8.4588e-08 au
i 14.85370358715763 7.6599e-07 deg
node 342.9943014021445 3.1431e-06 deg
peri 19.05316092485262 2.3758e-05 deg
M 63.69904377266976 2.1471e-05 deg
tp 2458849.418404005543
(2019-Dec-31.91840401)
0.00011791 TDB
period 1984.164393567119
5.43
1.5163e-05
4.151e-08
d
yr
n .181436579129814 1.3865e-09 deg/d
Q 3.236478483591855 1.6488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2124  
   data-arc span      12216 days (33.45 yr)  
   first obs. used      1987-09-22  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:21:47  

Additional Information
 Earth MOID = 1.94007 au 
 Jupiter MOID = 2.0333 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 12.66   n/a MPCxxxxx  
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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