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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 74 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5682229688715769 1.657e-08  
a 2.259573778486094 8.571e-08 au
q .975632057690359 2.0301e-08 au
i 12.20643145889622 2.5394e-06 deg
node 182.7338977753702 2.5312e-06 deg
peri 325.7925849233461 7.2259e-06 deg
M 304.1187598953741 3.8378e-05 deg
tp 2459193.075817797713
(2020-Dec-09.57581780)
0.00014321 TDB
period 1240.6183949636
3.40
7.0589e-05
1.933e-07
d
yr
n .2901778673131494 1.6511e-08 deg/d
Q 3.543515499281829 1.3441e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .28992  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-10 07:02:16  

Additional Information
 Earth MOID = .032782 au 
 Jupiter MOID = 1.56503 au 
 T_jup = 3.363 
[ 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 19.4   n/a MPO466453  
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. 2019-August); 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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