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91421 (1999 NA65)
Classification: Main-belt Asteroid          SPK-ID: 2091421
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1852189997749062 3.6554e-08  
a 2.623066518017947 1.4021e-08 au
q 2.137224761207617 9.6844e-08 au
i 14.82024273667279 4.4215e-06 deg
node 124.737872461879 1.5703e-05 deg
peri 297.052387320061 2.0325e-05 deg
M 333.1828874763792 1.5368e-05 deg
tp 2459512.090434521348
(2021-Oct-24.59043452)
6.6667e-05 TDB
period 1551.716516497914
4.25
1.2442e-05
3.406e-08
d
yr
n .2320011394945308 1.8602e-09 deg/d
Q 3.108908274828277 1.6618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      988  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54838  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:32  

Additional Information
 Earth MOID = 1.19466 au 
 Jupiter MOID = 2.27691 au 
 T_jup = 3.333 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.64   n/a E2021B10  
diameter diameter 3.777 km 0.973 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91421 (1999 NA65)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 NA65 = 2000 UX75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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