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213024 (1995 WX21)
Classification: Main-belt Asteroid          SPK-ID: 2213024
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09050712516662053 4.1639e-08  
a 2.464734888819162 1.6993e-08 au
q 2.24165881973427 1.0585e-07 au
i 5.555148757106209 4.4166e-06 deg
node 94.70124873969365 5.9083e-05 deg
peri 187.7144952034866 6.957e-05 deg
M 298.7481962882846 4.0142e-05 deg
tp 2459440.975107300324
(2021-Aug-14.47510730)
0.0001587 TDB
period 1413.363091078385
3.87
1.4617e-05
4.002e-08
d
yr
n .2547116181768428 2.6342e-09 deg/d
Q 2.687810957904054 1.8531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      8892 days (24.34 yr)  
   first obs. used      1995-11-17  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:02  

Additional Information
 Earth MOID = 1.22343 au 
 Jupiter MOID = 2.41077 au 
 T_jup = 3.476 
[ 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 16.96   n/a E2021B55  

213024 (1995 WX21)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ hide close-approach data ]
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
2030-Sep-13 13:35 00:07 Psych 0.0403177324645518 0.0403146734679162 0.0403207918035497 2.26270882222532 2.2627086895994 2462758.066258833 6.50465967026581 250.022705238886 55.5240197356 54.4820292592473 89268.3809782867 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:41:03 2021-Apr-13 23:41

Alternate Designations
 1995 WX21 = 2002 PN174 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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