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49945 (1999 XC201)
Classification: Main-belt Asteroid          SPK-ID: 2049945
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021696030235814 4.3174e-08  
a 2.287187701856704 1.0166e-08 au
q 2.053506642317587 1.0091e-07 au
i 7.478449042087749 5.8003e-06 deg
node 345.5093797513853 3.5572e-05 deg
peri 60.66168975239464 4.5687e-05 deg
M 6.114901912862221 2.8502e-05 deg
tp 2458979.039584217343
(2020-May-09.53958422)
0.0001 TDB
period 1263.429862301806
3.46
8.4238e-06
2.306e-08
d
yr
n .2849386505271662 1.8998e-09 deg/d
Q 2.520868761395821 1.1205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      9172 days (25.11 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:00  

Additional Information
 Earth MOID = 1.07339 au 
 Jupiter MOID = 2.79654 au 
 T_jup = 3.583 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO432057  

49945 (1999 XC201)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XC201 = 1997 GP26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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