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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110511935603215 7.4273e-08  
a 2.545302762522307 3.2938e-08 au
q 2.264016427539757 2.0734e-07 au
i 24.7422295152409 9.3743e-06 deg
node 118.9285322019188 2.3365e-05 deg
peri 62.34797267642487 6.067e-05 deg
M 270.3919229709592 5.6147e-05 deg
tp 2459569.691978913649
(2021-Dec-21.19197891)
0.00023174 TDB
period 1483.226923459584
4.06
2.8791e-05
7.883e-08
d
yr
n .242714040789059 4.7114e-09 deg/d
Q 2.826589097504857 3.6579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      2001-01-15  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:20  

Additional Information
 Earth MOID = 1.34927 au 
 Jupiter MOID = 2.36022 au 
 T_jup = 3.307 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457992.5 (2017-Aug-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102935003457455 7.5184e-08  
q 2.264296003137623 2.0983e-07 au
tp 2458088.676165917009
(2017-Dec-01.17616592)
0.00023073 TDB
node 118.9660028367324 2.3384e-05 deg
peri 62.8088103903025 6.047e-05 deg
i 24.73310698973744 9.3673e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      2001-01-15  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:20  

Additional Information
 Jupiter MOID = 2.36022 au 
 T_jup = 3.307 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.652567779170164E-15 -1.567350477485699E-14 1.064292977941523E-11 1.160869843645467E-13 2.64075165153249E-12 -7.126288413296073E-14
q -1.567350477485699E-14 4.403018929023204E-14 -2.752723671474699E-11 -3.030938325373211E-13 -6.851732634720322E-12 1.953933383574453E-13
tp 1.064292977941523E-11 -2.752723671474699E-11 5.323451114412563E-8 4.853119237520848E-10 1.303165296088703E-8 -2.134517679744789E-10
node 1.160869843645467E-13 -3.030938325373211E-13 4.853119237520848E-10 5.468152776999234E-10 -3.7332503708781E-10 -1.680228665913234E-10
peri 2.64075165153249E-12 -6.851732634720322E-12 1.303165296088703E-8 -3.7332503708781E-10 3.656624319065636E-9 9.780249232830427E-11
i -7.126288413296073E-14 1.953933383574453E-13 -2.134517679744789E-10 -1.680228665913234E-10 9.780249232830427E-11 8.774690786445135E-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 16.56   n/a MPCxxxxx  
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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