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JPL Small-Body Database Browser
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172784 (2004 EH83)
Classification: Main-belt Asteroid          SPK-ID: 2172784
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04857224902399697 7.2052e-08  
a 3.087773671372332 3.9912e-08 au
q 2.937793559676694 2.3076e-07 au
i 11.45682504498602 8.3797e-06 deg
node 353.0667447507341 2.7396e-05 deg
peri 237.2671379495721 7.7713e-05 deg
M 313.4043896651171 7.2669e-05 deg
tp 2459257.012846776043
(2021-Feb-11.51284678)
0.00040004 TDB
period 1981.830996003577
5.43
3.8425e-05
1.052e-07
d
yr
n .1816502016195887 3.522e-09 deg/d
Q 3.23775378306797 4.1851e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      6687 days (18.31 yr)  
   first obs. used      2001-10-14  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:54:07  

Additional Information
 Earth MOID = 1.94842 au 
 Jupiter MOID = 1.78479 au 
 T_jup = 3.193 
[ 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 14.9   n/a MPO287730  
diameter diameter 6.698 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172784 (2004 EH83)          Discovered 2004-Mar-14 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ 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
1903-May-31 17:19 00:06 Jupiter 1.87110393956399 1.87110148871959 1.87110639041062 4.37545435719529 4.27074102199853 2416266.221607368 6.23160411145366 203.596531545788 86.9416633167348 64.3220094951577 1275696.09428331 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54
1963-May-23 09:20 00:03 Jupiter 1.78403171664485 1.78403093880069 1.78403249448901 4.10856209439391 3.99133092510387 2438172.888933891 2.85467444169997 329.680261022932 34.2913498775119 89.1863069128305 1872722.88015474 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54
2023-May-22 11:18 < 00:01 Jupiter 1.80486115694327 1.80486036108184 1.80486195280491 3.60338718784137 3.47070568092717 2460086.970861326 0.720415836813683 134.089404991338 33.828287618213 -86.5832458017855 1667725.05468283 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54
2083-Jun-10 14:44 00:05 Jupiter 1.90551631796579 1.90551472006985 1.90551791586216 2.93653395233036 2.78104478993401 2482021.114045276 4.59562027879796 97.7507273643258 65.2741358244303 -14.4556744660738 1345553.5356532 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54
2093-Apr-26 11:25 00:05 Jupiter 1.86476458523407 1.86476274553665 1.86476642493213 4.41365970194288 4.309517624442 2485628.975697007 4.57971379223374 192.017000709234 79.6746910607317 78.484930814378 1315703.44683609 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54
2153-Apr-21 13:59 00:08 Jupiter 1.79676947405532 1.79676856879045 1.79677037934777 4.03430565322607 3.91571115463853 2507538.082920664 8.12435650826274 767.33857519103 35.0042854065909 -89.637514190007 1815104.21373595 T 16 CATAB v2.0f-lin.ifort 2020-Feb-24 16:54:25 2020-Feb-24 16:54

Alternate Designations
 2004 EH83 = 2001 TN224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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