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(2013 WA44)
Classification: Amor [NEO]          SPK-ID: 3653910
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06046815053310606 8.0188e-08  
a 1.100464219952751 4.3227e-09 au
q 1.033921183844351 9.1095e-08 au
i 2.302096606939873 2.4504e-06 deg
node 56.51051087595113 4.919e-05 deg
peri 176.7061484728218 9.6575e-05 deg
M 236.4086791389803 5.8582e-05 deg
tp 2459345.259738456531
(2021-May-10.75973846)
6.7798e-05 TDB
period 421.6599149624237
1.15
2.4845e-06
6.802e-09
d
yr
n .8537686112090627 5.0305e-09 deg/d
Q 1.167007256061151 4.5841e-09 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      5452 days (14.93 yr)  
   first obs. used      2006-05-07  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51636  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 09:00:55  

Additional Information
 Earth MOID = .0209346 au 
 Jupiter MOID = 3.79987 au 
 T_jup = 5.646 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.6   n/a E2021B69  
rotation period rot_per 0.35 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Moskovitz, N.; Binzel, R.P.; Christensen, E.; et al. (2016) Astron. J. 152, A163.]

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