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441895 (2010 EM)
Classification: Main-belt Asteroid          SPK-ID: 2441895
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1106358192612109 8.2019e-08  
a 2.544756213745334 3.4494e-08 au
q 2.263215025217562 2.2218e-07 au
i 24.74233313993738 9.4352e-06 deg
node 118.9284386116526 2.6127e-05 deg
peri 62.44456679835942 6.3187e-05 deg
M 221.7458300050777 5.6754e-05 deg
tp 2459569.934060312921
(2021-Dec-21.43406031)
0.00023458 TDB
period 1482.749212701363
4.06
3.0148e-05
8.254e-08
d
yr
n .2427922381723137 4.9366e-09 deg/d
Q 2.826297402273106 3.8311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      7245 days (19.84 yr)  
   first obs. used      2001-01-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:27:15  

Additional Information
 Earth MOID = 1.34884 au 
 Jupiter MOID = 2.3614 au 
 T_jup = 3.307 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457485.5 (2016-Apr-07.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101311283671599 8.2637e-08  
q 2.265155920318286 2.2394e-07 au
tp 2458088.330917322524
(2017-Nov-30.83091732)
0.00023394 TDB
node 118.9726935550229 2.6146e-05 deg
peri 62.67704561018702 6.3185e-05 deg
i 24.7316146562609 9.4261e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      7245 days (19.84 yr)  
   first obs. used      2001-01-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:27:15  

Additional Information
 Jupiter MOID = 2.3614 au 
 T_jup = 3.307 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.828807369490445E-15 -1.835570197808745E-14 1.134882536511214E-11 3.430688442301582E-14 2.746671316430075E-12 -8.282529588213906E-14
q -1.835570197808745E-14 5.015061020049945E-14 -2.921012980515805E-11 -8.596604249571661E-14 -7.141492469296289E-12 2.236053109358244E-13
tp 1.134882536511214E-11 -2.921012980515805E-11 5.47290834620494E-8 1.847962218102072E-10 1.362120431060415E-8 -2.416777267592487E-10
node 3.430688442301582E-14 -8.596604249571661E-14 1.847962218102072E-10 6.836220959080221E-10 -5.743084409957575E-10 -1.658509781270561E-10
peri 2.746671316430075E-12 -7.141492469296289E-12 1.362120431060415E-8 -5.743084409957575E-10 3.992327715407619E-9 8.948167359529198E-11
i -8.282529588213906E-14 2.236053109358244E-13 -2.416777267592487E-10 -1.658509781270561E-10 8.948167359529198E-11 8.885155921660639E-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 16.3   n/a MPO440828  
diameter diameter 2.989 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441895 (2010 EM)          Discovered 2010-Mar-01 by WISE at WISE
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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