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JPL Small-Body Database Browser
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49421 (1998 XC77)
Classification: Main-belt Asteroid          SPK-ID: 2049421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03187360762014387 3.3487e-08  
a 2.794607748706298 1.4153e-08 au
q 2.70553351787182 9.3867e-08 au
i 2.554144419896358 4.0565e-06 deg
node 230.3063558505177 8.3075e-05 deg
peri 279.3387223050178 0.00010561 deg
M 82.41453990857575 6.6282e-05 deg
tp 2458209.856094755672
(2018-Apr-01.35609476)
0.00031382 TDB
period 1706.395571023803
4.67
1.2962e-05
3.549e-08
d
yr
n .2109710117121361 1.6026e-09 deg/d
Q 2.883681979540776 1.4604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1411  
   data-arc span      7449 days (20.39 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:48  

Additional Information
 Earth MOID = 1.7178 au 
 Jupiter MOID = 2.10158 au 
 T_jup = 3.325 
[ show covariance matrix ]

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 14.0   n/a MPO436129  

49421 (1998 XC77)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XC77 = 2000 EU97 = 2000 GE81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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