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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502590754781886 4.8609e-08  
a 2.551878939100478 1.2232e-08 au
q 2.168435968978979 1.2265e-07 au
i 12.61272081695094 5.2323e-06 deg
node 223.6974352489725 2.0103e-05 deg
peri 190.5503539692348 2.5135e-05 deg
M 329.0045073818785 1.4864e-05 deg
tp 2459128.698980256806
(2020-Oct-06.19898026)
6.1414e-05 TDB
period 1488.978848023457
4.08
1.0705e-05
2.931e-08
d
yr
n .2417764365678409 1.7383e-09 deg/d
Q 2.935321909221977 1.407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1226  
   data-arc span      14516 days (39.74 yr)  
   first obs. used      1981-02-02  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:05:47  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2144-Sep-12 08:47 00:08 Iris 0.0187617049421447 0.0187414828934491 0.0187819274633967 2.59011409393182 2.5901139756326 2504394.865964997 8.23638568417441 1017.96124782429 31.7507831021365 -8.38057360183896 13149.4694193079 T 23 CATAB v2.0f-lin.ifort 2020-Nov-13 02:05:50 2020-Nov-13 02:05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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