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30445 Stirling (2000 NJ2)
Classification: Main-belt Asteroid          SPK-ID: 2030445
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1510551878720305 7.9357e-08  
a 2.696658233468534 3.7589e-08 au
q 2.289314017385287 2.3142e-07 au
i 12.05002622274928 7.755e-06 deg
node 287.4790048512674 3.3806e-05 deg
peri 287.063352917028 5.0859e-05 deg
M 244.9442539145195 4.7561e-05 deg
tp 2457917.443527688272
(2017-Jun-12.94352769)
0.00021984 JED
period 1617.473931545455
4.43
3.382e-05
9.259e-08
d
yr
n .2225692748296903 4.6537e-09 deg/d
Q 3.104002449551782 4.3268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      644  
   data-arc span      7011 days (19.20 yr)  
   first obs. used      1996-10-07  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53568  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:13:44  

Additional Information
 Earth MOID = 1.3154 au 
 Jupiter MOID = 2.05541 au 
 T_jup = 3.321 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO231624  

30445 Stirling           Discovered 2000 July 5 by P. G. Comba at Prescott.
James Stirling (1692-1770) was a Scottish mathematician best known for his derivation of an asymptotic formula for factorials.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 2000 NJ2 = 1999 CH115 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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