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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04717599261307104 5.3923e-08  
a 3.089366506247641 1.805e-08 au
q 2.943622574769833 1.6957e-07 au
i 14.85420582887965 6.045e-06 deg
node 342.9987149507473 1.3799e-05 deg
peri 18.80388676419753 4.373e-05 deg
M 27.64758164948693 4.0496e-05 deg
tp 2458848.179896522792
(2019-Dec-30.67989652)
0.00022324 TDB
period 1983.364691602686
5.43
1.7382e-05
4.759e-08
d
yr
n .1815097352111764 1.5908e-09 deg/d
Q 3.235110437725449 1.8902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      12002 days (32.86 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:50:14  

Additional Information
 Earth MOID = 1.94138 au 
 Jupiter MOID = 2.03461 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456961.5 (2014-Oct-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04934289366307145 5.5126e-08  
q 2.936375001462183 1.7401e-07 au
tp 2456842.786929913680
(2014-Jul-04.28692991)
0.00020786 TDB
node 343.1797553947503 1.3749e-05 deg
peri 14.85897447018841 4.0709e-05 deg
i 14.88807710434215 6.0536e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      12002 days (32.86 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:50:14  

Additional Information
 Jupiter MOID = 2.03461 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.038823311140311E-15 -9.546339945543697E-15 -2.387094045897036E-12 3.494722645992867E-15 -4.866982215184511E-13 1.699790295531832E-15
q -9.546339945543697E-15 3.027829640824896E-14 6.814912893139373E-12 -1.089361074105354E-14 1.406493932604401E-12 -3.400761841937069E-15
tp -2.387094045897036E-12 6.814912893139373E-12 4.320587148252752E-8 -2.806201600001357E-11 7.973405940799996E-9 -1.135851920546201E-11
node 3.494722645992867E-15 -1.089361074105354E-14 -2.806201600001357E-11 1.89029022052894E-10 -1.873000876068193E-10 7.701442117342385E-12
peri -4.866982215184511E-13 1.406493932604401E-12 7.973405940799996E-9 -1.873000876068193E-10 1.657222353366085E-9 -9.537649864579555E-12
i 1.699790295531832E-15 -3.400761841937069E-15 -1.135851920546201E-11 7.701442117342385E-12 -9.537649864579555E-12 3.664580035798839E-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 12.6   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

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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 31 CATAB v2.0f-lin.ifort 2020-Aug-25 00:50:26 2020-Aug-25 00:50
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 31 CATAB v2.0f-lin.ifort 2020-Aug-25 00:50:26 2020-Aug-25 00:50

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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