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(2013 WT44)
Classification: Apollo [NEO, PHA]          SPK-ID: 3653916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 75 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5682576447963177 1.6528e-08  
a 2.259967599891963 8.5651e-08 au
q .9757237342613694 2.0337e-08 au
i 12.20599578055258 2.5393e-06 deg
node 182.7310944795948 2.5313e-06 deg
peri 325.7846704308888 7.2222e-06 deg
M 2.155889925954957 4.1665e-05 deg
tp 2459193.068511182535
(2020-Dec-09.56851118)
0.0001432 TDB
period 1240.942750406147
3.40
7.0546e-05
1.931e-07
d
yr
n .2901020211304479 1.6492e-08 deg/d
Q 3.544211465522557 1.3432e-07 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   # delay obs. used      9  
   # Doppler obs. used      3  
   data-arc span      2509 days (6.87 yr)  
   first obs. used      2013-11-27  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .28992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 09:01:00  

Additional Information
 Earth MOID = .0325911 au 
 Jupiter MOID = 1.56379 au 
 T_jup = 3.362 
[ 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 19.3   n/a E2020T65  
diameter diameter 0.653 km 0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 2.8849 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
geometric albedo albedo 0.079   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

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