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91402 (1999 NW)
Classification: Main-belt Asteroid          SPK-ID: 2091402
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035001737624416 3.7624e-08  
a 2.810382483662789 1.7378e-08 au
q 2.519507408264768 1.0573e-07 au
i 5.23402895421947 4.1978e-06 deg
node 182.0980735462706 3.9545e-05 deg
peri 167.2245552379892 4.3491e-05 deg
M 193.8353723654083 1.9837e-05 deg
tp 2460190.796501515244
(2023-Sep-03.29650151)
9.7864e-05 TDB
period 1720.864088922136
4.71
1.5962e-05
4.37e-08
d
yr
n .209197229646117 1.9404e-09 deg/d
Q 3.101257559060809 1.9177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1999-07-09  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51803  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:40:29  

Additional Information
 Earth MOID = 1.51282 au 
 Jupiter MOID = 2.31217 au 
 T_jup = 3.307 
[ 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 15.50   n/a MPCxxxxx  

91402 (1999 NW)          Discovered 1999-Jul-09 by Zoltowski, F. B. at Woomera
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 NW = 2000 WW25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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