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441991 (2010 NO84)
Classification: Main-belt Asteroid          SPK-ID: 2441991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02928833738209746 6.7189e-08  
a 3.007897690942301 4.6083e-08 au
q 2.919801368559151 2.1735e-07 au
i 9.157759631958868 5.5166e-06 deg
node 248.1919893526509 4.232e-05 deg
peri 75.54285405930835 0.00014481 deg
M 63.55725578886548 0.00013232 deg
tp 2459060.100258057619
(2020-Jul-29.60025806)
0.00070346 TDB
period 1905.430081839267
5.22
4.3789e-05
1.199e-07
d
yr
n .1889337233788712 4.3419e-09 deg/d
Q 3.095994013325452 4.7433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5457 days (14.94 yr)  
   first obs. used      2005-10-29  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:40  

Additional Information
 Earth MOID = 1.92234 au 
 Jupiter MOID = 2.0149 au 
 T_jup = 3.230 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458210.5 (2018-Apr-02.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03217411284134797 6.8564e-08  
q 2.911445898000663 2.2355e-07 au
tp 2459079.083544150974
(2020-Aug-17.58354415)
0.00062506 TDB
node 248.2713297517938 4.223e-05 deg
peri 79.41494138033956 0.0001306 deg
i 9.167262221113994 5.5225e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5457 days (14.94 yr)  
   first obs. used      2005-10-29  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:40  

Additional Information
 Jupiter MOID = 2.0149 au 
 T_jup = 3.230 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.701026063917219E-15 -1.50394835994635E-14 1.700953178642928E-11 7.407602791904986E-15 3.493280476810699E-12 -1.586506818778783E-14
q -1.50394835994635E-14 4.997517795832841E-14 -6.264197668719303E-11 -2.233469029616558E-14 -1.293239386894795E-11 5.35393659206714E-14
tp 1.700953178642928E-11 -6.264197668719303E-11 3.906964500046923E-7 7.780101509370712E-11 7.727767654177963E-8 -5.994115135896557E-11
node 7.407602791904986E-15 -2.233469029616558E-14 7.780101509370712E-11 1.783401416513074E-9 -1.744762759909614E-9 5.638876725033967E-12
peri 3.493280476810699E-12 -1.293239386894795E-11 7.727767654177963E-8 -1.744762759909614E-9 1.705720684357353E-8 -1.815238630571742E-11
i -1.586506818778783E-14 5.35393659206714E-14 -5.994115135896557E-11 5.638876725033967E-12 -1.815238630571742E-11 3.049749314517431E-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 16.44   n/a E2021B25  
diameter diameter 4.696 km 0.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441991 (2010 NO84)          Discovered 2010-Jul-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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