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19933 (1981 EW5)
Classification: Main-belt Asteroid          SPK-ID: 2019933
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502590768128336 4.8774e-08  
a 2.551878940180879 1.2731e-08 au
q 2.168435966491188 1.2288e-07 au
i 12.61272076651445 5.2361e-06 deg
node 223.69743800117 2.0904e-05 deg
peri 190.5503522888133 2.5905e-05 deg
M 329.0045056931546 1.575e-05 deg
tp 2459128.698987322871
(2020-Oct-06.19898732)
6.5169e-05 TDB
period 1488.978848969051
4.08
1.1143e-05
3.051e-08
d
yr
n .2417764364142978 1.8093e-09 deg/d
Q 2.93532191387057 1.4644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      14476 days (39.63 yr)  
   first obs. used      1981-02-02  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:51:46  

Additional Information
 Earth MOID = 1.18043 au 
 Jupiter MOID = 2.44254 au 
 T_jup = 3.390 
[ 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 14.0   n/a MPO474028  
diameter diameter 9.534 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19933 (1981 EW5)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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