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49926 (1999 XK175)
Classification: Main-belt Asteroid          SPK-ID: 2049926
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071602496078127 4.4841e-08  
a 2.326266060177652 1.15e-08 au
q 1.844356202497067 1.0723e-07 au
i 5.630274498635387 5.2026e-06 deg
node 45.8163255967741 4.5436e-05 deg
peri 336.5494359745195 4.7429e-05 deg
M 337.3321448252806 1.8333e-05 deg
tp 2459082.100990809176
(2020-Aug-20.60099081)
6.6404e-05 TDB
period 1295.947784423195
3.55
9.6097e-06
2.631e-08
d
yr
n .2777889698389586 2.0599e-09 deg/d
Q 2.808175917858237 1.3882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      9217 days (25.23 yr)  
   first obs. used      1994-05-04  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:37:16  

Additional Information
 Earth MOID = .849496 au 
 Jupiter MOID = 2.64815 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456927.5 (2014-Sep-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2084135024989885 4.4943e-08  
q 1.841453695490712 1.0764e-07 au
tp 2456490.708822272503
(2013-Jul-17.20882227)
5.4976e-05 TDB
node 45.8671569247859 4.5377e-05 deg
peri 336.6085714915552 4.7344e-05 deg
i 5.635350270699091 5.2059e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      9217 days (25.23 yr)  
   first obs. used      1994-05-04  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:37:16  

Additional Information
 Jupiter MOID = 2.64815 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.01987854643338E-15 -4.822146405548728E-15 -2.064872926439496E-13 2.291768892761166E-15 -4.159070700706466E-14 -4.15757171423035E-16
q -4.822146405548728E-15 1.15864865064909E-14 7.03008700818417E-13 -6.873839913124174E-15 1.548702361379259E-13 1.353793033754857E-15
tp -2.064872926439496E-13 7.03008700818417E-13 3.022336060646141E-9 -3.025077066780688E-13 7.595846661869698E-10 2.153752898776804E-12
node 2.291768892761166E-15 -6.873839913124174E-15 -3.025077066780688E-13 2.059107432152578E-9 -2.04886125080747E-9 1.65254477367265E-11
peri -4.159070700706466E-14 1.548702361379259E-13 7.595846661869698E-10 -2.04886125080747E-9 2.241435687443534E-9 -1.588718479891129E-11
i -4.15757171423035E-16 1.353793033754857E-15 2.153752898776804E-12 1.65254477367265E-11 -1.588718479891129E-11 2.71009598563684E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO436133  

49926 (1999 XK175)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XK175 = 1994 JT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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