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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04733728316882196 4.6049e-08  
a 3.090196881480184 1.6823e-08 au
q 2.943915356654146 1.4191e-07 au
i 14.85371082907083 4.8813e-06 deg
node 342.9942999594999 1.3766e-05 deg
peri 19.05317079938126 4.3004e-05 deg
M 63.69903397229966 3.9332e-05 deg
tp 2458849.418458083598
(2019-Dec-31.91845808)		 0.00021735 TDB
period 1984.164393213041
5.43		 1.6203e-05
4.436e-08		 d
yr
n .1814365791621917 1.4816e-09 deg/d
Q 3.236478406306222 1.7619e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2049  
   data-arc span      12172 days (33.33 yr)  
   first obs. used      1987-09-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:16:55  

Additional Information
 Earth MOID = 1.94007 au 
 Jupiter MOID = 2.0333 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457235.5 (2015-Aug-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04914275825994226 4.7156e-08  
q 2.936364392457198 1.4571e-07 au
tp 2456842.221644353729
(2014-Jul-03.72164435)		 0.00020633 TDB
node 343.1801891300484 1.3718e-05 deg
peri 14.75105846780585 4.0494e-05 deg
i 14.88829803083087 4.8886e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2049  
   data-arc span      12172 days (33.33 yr)  
   first obs. used      1987-09-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:16:55  

Additional Information
 Jupiter MOID = 2.0333 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.223716957129878E-15 -6.830255946007861E-15 -1.5250786946384E-12 1.939154073753838E-15 -3.379194465200361E-13 -2.927410427152503E-16
q -6.830255946007861E-15 2.123006414755401E-14 3.941377257930275E-12 -5.683095506473638E-15 9.104836084456316E-13 2.518024943414484E-15
tp -1.5250786946384E-12 3.941377257930275E-12 4.2572689421619E-8 -2.803522726713793E-11 7.87006290540369E-9 -1.782729885245077E-11
node 1.939154073753838E-15 -5.683095506473638E-15 -2.803522726713793E-11 1.881939987112235E-10 -1.865069616615835E-10 6.843110094669155E-12
peri -3.379194465200361E-13 9.104836084456316E-13 7.87006290540369E-9 -1.865069616615835E-10 1.63974367811169E-9 -9.876205987522878E-12
i -2.927410427152503E-16 2.518024943414484E-15 -1.782729885245077E-11 6.843110094669155E-12 -9.876205987522878E-12 2.389835422020004E-11

[ 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 12.65   n/a E2021B10  
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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