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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .185850752073033 3.8812e-08  
a 2.626099107859893 1.4484e-08 au
q 2.138036613645811 1.0207e-07 au
i 14.81580972997421 4.5395e-06 deg
node 124.7410244907442 1.6819e-05 deg
peri 296.7004464955535 2.1315e-05 deg
M 241.8084917017846 1.5083e-05 deg
tp 2459510.827379529854
(2021-Oct-23.32737953)
6.7034e-05 TDB
period 1554.408258901297
4.26
1.286e-05
3.521e-08
d
yr
n .2315993870583645 1.916e-09 deg/d
Q 3.114161602073976 1.7175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      7644 days (20.93 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:39:36  

Additional Information
 Earth MOID = 1.19593 au 
 Jupiter MOID = 2.27429 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457460.5 (2016-Mar-13.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882899720259213 3.9003e-08  
q 2.128647632021038 1.0288e-07 au
tp 2457957.242997442758
(2017-Jul-22.74299744)
6.0948e-05 TDB
node 124.8283799506261 1.6864e-05 deg
peri 296.5280427840084 2.1197e-05 deg
i 14.80334686936795 4.5367e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      7644 days (20.93 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:39:36  

Additional Information
 Jupiter MOID = 2.27429 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.521208021884969E-15 -3.987084888650472E-15 5.350754880380246E-13 -3.768474283012173E-15 9.84623023969545E-14 4.435899254598164E-15
q -3.987084888650472E-15 1.058408858199553E-14 -1.195560390322945E-12 9.466141271966735E-15 -2.252813485804611E-13 -1.128136968372932E-14
tp 5.350754880380246E-13 -1.195560390322945E-12 3.714633203732759E-9 -2.196763936592508E-11 8.029661553478122E-10 -6.941430873518196E-13
node -3.768474283012173E-15 9.466141271966735E-15 -2.196763936592508E-11 2.844042952738095E-10 -2.789386194948856E-10 -1.085220233431972E-11
peri 9.84623023969545E-14 -2.252813485804611E-13 8.029661553478122E-10 -2.789386194948856E-10 4.493193369832852E-10 1.019157296168955E-11
i 4.435899254598164E-15 -1.128136968372932E-14 -6.941430873518196E-13 -1.085220233431972E-11 1.019157296168955E-11 2.058165151599769E-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 14.6   n/a MPO385379  
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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