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212145 (2005 EM280)
Classification: Main-belt Asteroid          SPK-ID: 2212145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1314157764655359 7.3142e-08  
a 2.600884162713125 3.9055e-08 au
q 2.259086950973264 1.9743e-07 au
i 6.878544758731572 7.1118e-06 deg
node 138.9195805273885 6.2141e-05 deg
peri 86.27190587078096 8.3324e-05 deg
M 195.4745498581544 7.0718e-05 deg
tp 2459700.681334400505
(2022-May-01.18133440)
0.00031391 TDB
period 1532.074704350382
4.19
3.4509e-05
9.448e-08
d
yr
n .2349754871467865 5.2927e-09 deg/d
Q 2.942681374452985 4.4188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5350 days (14.65 yr)  
   first obs. used      2005-03-10  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62945  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:51:43  

Additional Information
 Earth MOID = 1.26287 au 
 Jupiter MOID = 2.06706 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457438.5 (2016-Feb-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1316141703663406 7.2942e-08  
q 2.258308923319537 1.9667e-07 au
tp 2458170.174828566996
(2018-Feb-20.67482857)
0.00028629 TDB
node 138.9700694079903 6.2137e-05 deg
peri 86.55451876209801 8.3404e-05 deg
i 6.879177233717707 7.1156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5350 days (14.65 yr)  
   first obs. used      2005-03-10  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62945  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:51:43  

Additional Information
 Jupiter MOID = 2.06706 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.320558376354595E-15 -1.413498162007641E-14 -9.289323425807046E-12 -2.082956399902741E-14 -1.944350122668391E-12 1.463914705730165E-14
q -1.413498162007641E-14 3.867923013178266E-14 3.175785234865475E-11 7.541207607320053E-14 6.464614843134658E-12 -3.86935371379482E-14
tp -9.289323425807046E-12 3.175785234865475E-11 8.195921005524115E-8 1.73420821767693E-10 1.598984349203626E-8 -3.780695662320605E-11
node -2.082956399902741E-14 7.541207607320053E-14 1.73420821767693E-10 3.861055868511092E-9 -3.798792902190483E-9 2.192129576317194E-10
peri -1.944350122668391E-12 6.464614843134658E-12 1.598984349203626E-8 -3.798792902190483E-9 6.956252840453063E-9 -2.255304517701917E-10
i 1.463914705730165E-14 -3.86935371379482E-14 -3.780695662320605E-11 2.192129576317194E-10 -2.255304517701917E-10 5.063198670613401E-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 16.7   n/a MPO454523  

212145 (2005 EM280)          Discovered 2005-Mar-10 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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