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(2009 EM1)
Classification: Amor [NEO]          SPK-ID: 3449135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5591808154569285 5.8592e-08  
a 2.519725497121763 8.4469e-09 au
q 1.110743338913601 1.4962e-07 au
i 18.11731588707001 2.449e-05 deg
node 347.7293586510334 9.7448e-06 deg
peri 185.8084212184511 7.562e-05 deg
M 339.3031205552361 1.9082e-05 deg
tp 2459284.490591939597
(2021-Mar-10.99059194)
7.7525e-05 TDB
period 1460.926183531713
4.00
7.3462e-06
2.011e-08
d
yr
n .2464190210690308 1.2391e-09 deg/d
Q 3.928707655329925 1.317e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -3.165722165114441E-13 4.821E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4387 days (12.01 yr)  
   first obs. used      2009-03-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:39:04  

Additional Information
 Earth MOID = .118461 au 
 Jupiter MOID = 1.06045 au 
 T_jup = 3.162 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.0   n/a E2021D90  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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