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190031 (2004 RW17)
Classification: Main-belt Asteroid          SPK-ID: 2190031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .115265917092013 5.1428e-08  
a 2.619584831856629 1.7195e-08 au
q 2.317635983812348 1.3858e-07 au
i 2.843343583984482 5.4686e-06 deg
node 174.186192193806 9.6908e-05 deg
peri 100.1353970743925 0.00010028 deg
M 359.676805666315 2.561e-05 deg
tp 2459201.890299494116
(2020-Dec-18.39029949)
0.00011017 TDB
period 1548.628072079622
4.24
1.5248e-05
4.175e-08
d
yr
n .2324638216822217 2.2888e-09 deg/d
Q 2.92153367990091 1.9177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      9590 days (26.26 yr)  
   first obs. used      1994-02-16  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56501  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:05:56  

Additional Information
 Earth MOID = 1.3016 au 
 Jupiter MOID = 2.17179 au 
 T_jup = 3.394 
[ 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 16.48   n/a E2021B55  
diameter diameter 2.952 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190031 (2004 RW17)          Discovered 2004-Sep-07 by Spacewatch at Kitt Peak
Reference: 20080819/Numbers.arcLast Updated: 2008-08-25

[ show close-approach data ]
Alternate Designations
 2004 RW17 = 2007 EM57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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