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152736 (1998 WX21)
Classification: Main-belt Asteroid          SPK-ID: 2152736
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1284503573291864 4.0563e-08  
a 2.260549360079183 8.2684e-09 au
q 1.970180987016748 9.207e-08 au
i 3.562437949425581 4.3596e-06 deg
node 54.48683666771053 7.1124e-05 deg
peri 315.6074985854465 7.3001e-05 deg
M 213.2497598063264 1.7332e-05 deg
tp 2459706.552690956291
(2022-May-07.05269096)
6.0857e-05 TDB
period 1241.42194591187
3.40
6.8111e-06
1.865e-08
d
yr
n .2899900401998828 1.591e-09 deg/d
Q 2.550917733141617 9.3305e-09 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      10427 days (28.55 yr)  
   first obs. used      1991-10-04  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55914  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:26  

Additional Information
 Earth MOID = .970277 au 
 Jupiter MOID = 2.91335 au 
 T_jup = 3.607 
[ 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 16.79   n/a E2021B55  

152736 (1998 WX21)          Discovered 1998-Nov-18 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 1998 WX21 = 2001 QC123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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