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74415 (1999 AR9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2074415
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436073285759779 1.1309e-07  
a 3.206841234105522 5.5338e-08 au
q 2.746315331308336 3.7373e-07 au
i 25.46254393771708 1.4458e-05 deg
node 337.6157379523223 2.2999e-05 deg
peri 38.1768846117207 4.9997e-05 deg
M 104.2990584533691 4.6281e-05 deg
tp 2456792.795429301301
(2014-May-15.29542930)
0.00026439 JED
period 2097.561077690293
5.74
5.4294e-05
1.486e-07
d
yr
n .171627898624249 4.4425e-09 deg/d
Q 3.667367136902708 6.3285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      7034 days (19.26 yr)  
   first obs. used      1996-09-13  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54831  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 15:56:47  

Additional Information
 Earth MOID = 1.77473 au 
 Jupiter MOID = 1.85873 au 
 T_jup = 3.025 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a MPO266273  

74415 (1999 AR9)          Discovered 1999-Jan-10 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AR9 = 1999 FC63 = 2002 PW45 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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