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379152 (2009 PE21)
Classification: Main-belt Asteroid          SPK-ID: 2379152
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921618214777122 1.1622e-07  
a 2.42300467307814 5.4346e-08 au
q 1.957395681650436 2.5878e-07 au
i 3.92275763245816 1.6332e-05 deg
node 249.4445125024395 0.00017384 deg
peri 89.34631876915904 0.00018154 deg
M 302.8018016635654 6.2437e-05 deg
tp 2459219.381800761562
(2021-Jan-04.88180076)
0.00024469 TDB
period 1377.621158811383
3.77
4.6348e-05
1.269e-07
d
yr
n .2613200281495454 8.7918e-09 deg/d
Q 2.888613664505844 6.4789e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      3026 days (8.28 yr)  
   first obs. used      2009-08-15  
   last obs. used      2017-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:48  

Additional Information
 Earth MOID = .953292 au 
 Jupiter MOID = 2.51583 au 
 T_jup = 3.484 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456977.5 (2014-Nov-16.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1905749700216393 1.1525e-07  
q 1.962500775176148 2.5516e-07 au
tp 2456463.438618938053
(2013-Jun-19.93861894)
0.00018273 TDB
node 249.6193693988634 0.00017383 deg
peri 89.10700828398501 0.00018175 deg
i 3.922685312388464 1.6313e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      3026 days (8.28 yr)  
   first obs. used      2009-08-15  
   last obs. used      2017-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:48  

Additional Information
 Jupiter MOID = 2.51583 au 
 T_jup = 3.484 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.328240339529148E-14 -2.910306451948452E-14 1.535279324802808E-11 5.232524056796343E-14 4.382579613822744E-12 -4.906562034100411E-14
q -2.910306451948452E-14 6.510497833606672E-14 -3.258486348404995E-11 -1.176823538558199E-13 -9.146652025271143E-12 1.06975756055707E-13
tp 1.535279324802808E-11 -3.258486348404995E-11 3.339145635452942E-8 2.515781077901631E-11 9.832091281741106E-9 -7.852175684644459E-11
node 5.232524056796343E-14 -1.176823538558199E-13 2.515781077901631E-11 3.021696767262422E-8 -3.013788544934972E-8 -1.937984207994707E-9
peri 4.382579613822744E-12 -9.146652025271143E-12 9.832091281741106E-9 -3.013788544934972E-8 3.303395007492374E-8 1.910681262930715E-9
i -4.906562034100411E-14 1.06975756055707E-13 -7.852175684644459E-11 -1.937984207994707E-9 1.910681262930715E-9 2.661237117274721E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO434345  

379152 (2009 PE21)          Discovered 2009-Aug-15 by CSS at Catalina
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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