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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457267.5 (2015-Sep-02.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04913079730916336 2.9383e-08  
q 2.936424539245367 8.9863e-08 au
tp 2456842.281183701396
(2014-Jul-03.78118370)		 0.0001009 TDB
node 343.1799881761931 3.1284e-06 deg
peri 14.76455516242629 2.0943e-05 deg
i 14.88829431310504 7.6747e-07 deg
   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
 Jupiter MOID = 2.0333 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.633828236553772E-16 -2.60432493339879E-15 -2.118008255138313E-12 -7.835994823154096E-15 -4.550553987446308E-13 3.101084209252463E-16
q -2.60432493339879E-15 8.07535042539921E-15 6.653107613871498E-12 2.477161385406294E-14 1.428238986542542E-12 -8.394832671472266E-16
tp -2.118008255138313E-12 6.653107613871498E-12 1.01799302360672E-8 -1.673464559511061E-11 2.091896205283985E-9 2.515776920078148E-12
node -7.835994823154096E-15 2.477161385406294E-14 -1.673464559511061E-11 9.786577340751223E-12 -1.106865910063519E-11 6.980230831089701E-13
peri -4.550553987446308E-13 1.428238986542542E-12 2.091896205283985E-9 -1.106865910063519E-11 4.386026375209113E-10 -1.526590565418135E-13
i 3.101084209252463E-16 -8.394832671472266E-16 2.515776920078148E-12 6.980230831089701E-13 -1.526590565418135E-13 5.890133699517741E-13

[ 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

[ 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 37 CATAB v2.0f-lin.ifort 2021-Apr-13 00:22:24 2021-Apr-13 00:22
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 37 CATAB v2.0f-lin.ifort 2021-Apr-13 00:22:24 2021-Apr-13 00:22

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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