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JPL Small-Body Database Browser
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357920 (2005 WQ44)
Classification: Main-belt Asteroid          SPK-ID: 2357920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01773280071928193 5.7388e-08  
a 3.146816647298798 4.8851e-08 au
q 3.091014774792129 2.0417e-07 au
i 8.613297817892253 6.1026e-06 deg
node 246.9799512647297 4.0463e-05 deg
peri 19.00704708447098 0.0001816 deg
M 299.9958217113605 0.00017644 deg
tp 2458940.347889631231
(2020-Mar-31.84788963)
0.00099934 TDB
period 2038.945349417551
5.58
4.7479e-05
1.3e-07
d
yr
n .1765618681750534 4.1114e-09 deg/d
Q 3.202618519805466 4.9717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      6295 days (17.23 yr)  
   first obs. used      2002-04-05  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56287  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:43:18  

Additional Information
 Earth MOID = 2.07643 au 
 Jupiter MOID = 1.8261 au 
 T_jup = 3.191 
[ 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 15.4   n/a MPO437512  

357920 (2005 WQ44)          Discovered 2005-Nov-22 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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