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213053 (1998 WT30)
Classification: Amor [NEO]          SPK-ID: 2213053
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3373896043520704 6.2493e-08  
a 1.812596551909037 5.6427e-09 au
q 1.20104531841052 1.1379e-07 au
i .5116372629387228 1.086e-05 deg
node 36.01721587394584 0.00084033 deg
peri 126.5909813975813 0.00084075 deg
M 309.3595574951107 2.8758e-05 deg
tp 2459325.884872400416
(2021-Apr-21.38487240)
7.1605e-05 TDB
period 891.3538632643558
2.44
4.1623e-06
1.14e-08
d
yr
n .4038800019125872 1.886e-09 deg/d
Q 2.424147785407555 7.5465e-09 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-11-17  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .68644  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:09  

Additional Information
 Earth MOID = .209006 au 
 Jupiter MOID = 2.55583 au 
 T_jup = 3.982 
[ 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 19.69   n/a MPCxxxxx  

213053 (1998 WT30)          Discovered 1998-Nov-24 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1998 WT30 = 2004 BQ161 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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