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JPL Small-Body Database Browser
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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5682229780382319 2.5054e-08  
a 2.259573828543835 1.4208e-07 au
q .9756320585914081 2.1306e-08 au
i 12.20643101438176 2.5403e-06 deg
node 182.7338974319579 2.5411e-06 deg
peri 325.7925853048099 7.6787e-06 deg
M 304.1187376656965 6.359e-05 deg
tp 2459193.075900804168
(2020-Dec-09.57590080)
0.0002373 TDB
period 1240.618436189885
3.40
0.00011701
3.204e-07
d
yr
n .290177857670414 2.7369e-08 deg/d
Q 3.543515598496263 2.2281e-07 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   # delay obs. used      9  
   # Doppler obs. used      3  
   data-arc span      1038 days (2.84 yr)  
   first obs. used      2013-11-27  
   last obs. used      2016-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .28975  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-16 04:42:23  

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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