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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04717600044402956 5.5532e-08  
a 3.089366504476358 1.8327e-08 au
q 2.943622548889411 1.7519e-07 au
i 14.8542055516849 6.2239e-06 deg
node 342.9987151312373 1.3822e-05 deg
peri 18.80388413861226 4.4023e-05 deg
M 27.64758457535061 4.0914e-05 deg
tp 2458848.179880534195
(2019-Dec-30.67988053)
0.00022551 TDB
period 1983.364689896948
5.43
1.7649e-05
4.832e-08
d
yr
n .1815097353672788 1.6151e-09 deg/d
Q 3.235110460063305 1.9192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      11807 days (32.33 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49737  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:53:39  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1957-Mar-20 21:53 00:02 Psych 0.0331319082624572 0.0331182201805525 0.0331455963544721 5.07415299377848 5.07415292180986 2435918.412046440 1.90205066171299 682.793864171119 52.1892382909846 -2.42525901285803 8285.82477509999 T 30 CATAB v2.0f-lin.ifort 2020-Feb-22 20:53:53 2020-Feb-22 20:53
2082-Jan-30 21:50 00:02 Psych 0.0268344668633907 0.0268312554344706 0.0268376914984414 5.12485679406904 5.12485670609015 2481525.409507692 2.12877942253392 1004.39427815387 51.8730396136696 -81.2981131843041 76456.060509374 T 30 CATAB v2.0f-lin.ifort 2020-Feb-22 20:53:53 2020-Feb-22 20:53

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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