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220256 (2002 XK118)
Classification: Main-belt Asteroid          SPK-ID: 2220256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2309149226752166 6.7327e-08  
a 2.408385526980978 1.8562e-08 au
q 1.852253369246054 1.5855e-07 au
i 2.970047257512674 5.529e-06 deg
node 145.1897801227529 0.00012381 deg
peri 215.7196056573873 0.00012444 deg
M 30.64357593068451 1.5256e-05 deg
tp 2459280.295115668177
(2021-Mar-06.79511567)
5.6975e-05 TDB
period 1365.172212736656
3.74
1.5782e-05
4.321e-08
d
yr
n .2637029941287302 3.0486e-09 deg/d
Q 2.964517684715901 2.2848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6004 days (16.44 yr)  
   first obs. used      2002-11-16  
   last obs. used      2019-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:10:41  

Additional Information
 Earth MOID = .849256 au 
 Jupiter MOID = 2.49071 au 
 T_jup = 3.483 
[ 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 17.1   n/a MPO433444  

220256 (2002 XK118)          Discovered 2002-Dec-10 by NEAT at Palomar
Reference: 20091004/Numbers.arcLast Updated: 2009-10-06

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2029-Aug-15 02:52 < 00:01 Eunom 0.0264021406335321 0.0263998417482843 0.0264044403527248 4.72041169991827 4.72041158728288 2462363.619123180 0.924588569112959 278.032927531395 44.0973844932782 -67.3434228270015 82772.8328004273 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 00:10:42 2021-Apr-14 00:10
2115-Aug-05 11:10 00:01 Eunom 0.0304385056121528 0.0304226440102945 0.0304543748901971 4.79272050503422 4.7927204088091 2493763.965340259 1.46515638264201 1098.84583449482 48.9769480341659 44.0438625886779 64655.4011349111 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 00:10:42 2021-Apr-14 00:10

Alternate Designations
 2002 XK118 = 2006 XJ30 = 2008 GS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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