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JPL Small-Body Database Browser
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249428 (2009 EP22)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01506456094802794 5.9278e-08  
a 3.506060581806678 5.6504e-08 au
q 3.453243318484573 1.9906e-07 au
i 9.654096006387416 6.2974e-06 deg
node 198.02120042647 2.7821e-05 deg
peri 355.4787883780426 0.00015712 deg
M 210.5691291968941 0.00015454 deg
tp 2459595.826065552774
(2022-Jan-16.32606555)
0.0010311 TDB
period 2397.880582996315
6.57
5.7966e-05
1.587e-07
d
yr
n .1501325806434262 3.6293e-09 deg/d
Q 3.558877845128783 5.7355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8637 days (23.65 yr)  
   first obs. used      1996-04-13  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:44:52  

Additional Information
 Earth MOID = 2.45134 au 
 Jupiter MOID = 1.40076 au 
 T_jup = 3.102 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457070.5 (2015-Feb-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01669423091582825 5.932e-08  
q 3.44699282894631 1.9928e-07 au
tp 2457180.766234507561
(2015-Jun-07.26623451)
0.000927 TDB
node 198.0288513685288 2.7834e-05 deg
peri 352.6546236511963 0.00014222 deg
i 9.651830232516996 6.2968e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8637 days (23.65 yr)  
   first obs. used      1996-04-13  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:44:52  

Additional Information
 Jupiter MOID = 1.40076 au 
 T_jup = 3.102 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.518879373460754E-15 -1.138963453110342E-14 2.741798336709458E-13 -4.927719770981944E-15 -1.116150766825886E-14 3.570501470195599E-15
q -1.138963453110342E-14 3.9712812034034E-14 2.17407862720913E-12 2.068640614465356E-14 4.704353695189599E-13 -4.386172142933807E-15
tp 2.741798336709458E-13 2.17407862720913E-12 8.593375128592557E-7 -3.731291441839031E-11 1.293113788322474E-7 1.491249922278687E-11
node -4.927719770981944E-15 2.068640614465356E-14 -3.731291441839031E-11 7.747223388198485E-10 -7.688104390406029E-10 -1.168044135951054E-11
peri -1.116150766825886E-14 4.704353695189599E-13 1.293113788322474E-7 -7.688104390406029E-10 2.022571642294265E-8 1.391211803515607E-11
i 3.570501470195599E-15 -4.386172142933807E-15 1.491249922278687E-11 -1.168044135951054E-11 1.391211803515607E-11 3.964975708562084E-11

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 14.8   n/a MPO422968  
diameter diameter 6.015 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249428 (2009 EP22)          Discovered 2009-Mar-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 EP22 = 2005 SD275 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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