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JPL Small-Body Database Browser
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74383 (1998 XC18)
Classification: Main-belt Asteroid          SPK-ID: 2074383
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02933506996404047 4.2997e-08  
a 2.938764105698655 2.2458e-08 au
q 2.852555255050174 1.2588e-07 au
i 1.265115383065998 5.068e-06 deg
node 231.8394012813014 0.00020601 deg
peri 39.72807695747836 0.00022341 deg
M 164.5738052827543 8.6444e-05 deg
tp 2457759.291355096631
(2017-Jan-05.79135510)
0.00044383 TDB
period 1840.117336078557
5.04
2.1093e-05
5.775e-08
d
yr
n .1956396980462071 2.2426e-09 deg/d
Q 3.024972956347135 2.3117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      8707 days (23.84 yr)  
   first obs. used      1995-03-02  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:50:33  

Additional Information
 Earth MOID = 1.83597 au 
 Jupiter MOID = 1.99029 au 
 T_jup = 3.273 
[ 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 15.5   n/a MPO426451  

74383 (1998 XC18)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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