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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439022724055661 1.2809e-07  
a 3.204292532795773 7.1873e-08 AU
q 2.743187555874274 4.3969e-07 AU
i 25.46269885389564 1.5511e-05 deg
node 337.61634020 2.3859e-05 deg
peri 37.77561858632055 5.1448e-05 deg
M 1.589499713273218 4.8761e-05 deg
tp 2456791.249725583946
(2014-May-13.74972558)
0.00028364 JED
period 2095.060956583428
5.74
7.0489e-05
1.93e-07
d
yr
n .171832709148033 5.7814e-09 deg/d
Q 3.665397509717272 8.2216e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      6252 days (17.12 yr)  
   first obs. used      1996-09-13  
   last obs. used      2013-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53797  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 13:53:19  

Additional Information
 Earth MOID = 1.77137 AU 
 T_jup = 3.026 
[ 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 (327)
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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