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437854 (1999 XW16)
Classification: Main-belt Asteroid          SPK-ID: 2437854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2870439296720145 7.7027e-08  
a 2.623515312885062 1.7357e-08 au
q 1.870451167919829 2.0174e-07 au
i 29.20106811256433 1.2245e-05 deg
node 256.1751292761587 1.5644e-05 deg
peri 112.2849253325907 2.5949e-05 deg
M 336.9379202136952 1.6507e-05 deg
tp 2459099.930540801203
(2020-Sep-07.43054080)
7.1286e-05 TDB
period 1552.114771092308
4.25
1.5403e-05
4.217e-08
d
yr
n .2319416107010233 2.3018e-09 deg/d
Q 3.376579457850294 2.234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:25:50  

Additional Information
 Earth MOID = 1.02571 au 
 Jupiter MOID = 2.50168 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457509.5 (2016-May-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2891351903903355 7.7544e-08  
q 1.86408817336314 2.0373e-07 au
tp 2457549.150112312607
(2016-Jun-09.65011231)
7.0483e-05 TDB
node 256.1968464818611 1.5654e-05 deg
peri 112.446972893086 2.58e-05 deg
i 29.20543329178582 1.2248e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:25:50  

Additional Information
 Jupiter MOID = 2.50168 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.013023634264573E-15 -1.576926579443945E-14 2.573017326098573E-12 -3.232112041958245E-14 8.339907307601483E-13 -1.440515548912018E-13
q -1.576926579443945E-14 4.150595181179827E-14 -6.875702329328986E-12 8.438319856959382E-14 -2.229958461935048E-12 3.784444015709019E-13
tp 2.573017326098573E-12 -6.875702329328986E-12 4.967806129855367E-9 -8.624645552489692E-12 1.47588601382931E-9 -9.699748535354001E-11
node -3.232112041958245E-14 8.438319856959382E-14 -8.624645552489692E-12 2.450363525052032E-10 -2.151626655049491E-10 -2.018382786487696E-11
peri 8.339907307601483E-13 -2.229958461935048E-12 1.47588601382931E-9 -2.151626655049491E-10 6.656286696931151E-10 -1.118878184233591E-11
i -1.440515548912018E-13 3.784444015709019E-13 -9.699748535354001E-11 -2.018382786487696E-11 -1.118878184233591E-11 1.500124367262066E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO434613  

437854 (1999 XW16)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: Last Updated: 2015-07-06

Alternate Designations
 1999 XW16 = 2003 TC10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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