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183977 (2004 EP28)
Classification: Main-belt Asteroid          SPK-ID: 2183977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094139767604964 6.1822e-08  
a 2.438977373571832 2.0948e-08 au
q 1.928221422543284 1.489e-07 au
i 3.180571106211798 6.3405e-06 deg
node 1.259181797747061 8.3172e-05 deg
peri 344.5821702834062 8.3972e-05 deg
M 283.2467348395837 1.368e-05 deg
tp 2459297.122740496533
(2021-Mar-23.62274050)
5.4852e-05 TDB
period 1391.265718214984
3.81
1.7924e-05
4.907e-08
d
yr
n .2587571844017588 3.3337e-09 deg/d
Q 2.94973332460038 2.5335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      6349 days (17.38 yr)  
   first obs. used      2002-12-06  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47302  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 04:40:52  

Additional Information
 Earth MOID = .921366 au 
 Jupiter MOID = 2.46643 au 
 T_jup = 3.470 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456869.5 (2014-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2075600500654268 6.141e-08  
q 1.933828492120622 1.4731e-07 au
tp 2456512.575737194257
(2013-Aug-08.07573719)
4.7077e-05 TDB
node 1.336697029724905 8.3329e-05 deg
peri 344.2832879893524 8.4151e-05 deg
i 3.177991128616247 6.329e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      6349 days (17.38 yr)  
   first obs. used      2002-12-06  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47302  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 04:40:52  

Additional Information
 Jupiter MOID = 2.46643 au 
 T_jup = 3.470 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.771222234682008E-15 -8.988526349657587E-15 1.062172952849596E-12 1.92321882234969E-14 1.623381113231069E-13 -6.41395321499272E-16
q -8.988526349657587E-15 2.169930984473133E-14 -2.689482439362119E-12 -4.257085485268694E-14 -4.051048735755476E-13 1.893590946155444E-15
tp 1.062172952849596E-12 -2.689482439362119E-12 2.216251710928968E-9 4.90164625301438E-12 5.576773637996455E-10 -2.144201700092951E-12
node 1.92321882234969E-14 -4.257085485268694E-14 4.90164625301438E-12 6.943690444589085E-9 -6.931607764169693E-9 6.364010815489982E-11
peri 1.623381113231069E-13 -4.051048735755476E-13 5.576773637996455E-10 -6.931607764169693E-9 7.081451763681083E-9 -6.408030722495605E-11
i -6.41395321499272E-16 1.893590946155444E-15 -2.144201700092951E-12 6.364010815489982E-11 -6.408030722495605E-11 4.005584722948897E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO469982  

183977 (2004 EP28)          Discovered 2004-Mar-15 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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