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39269 (2001 AK9)
Classification: Main-belt Asteroid          SPK-ID: 2039269
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038741736206174 3.9702e-08  
a 3.167626975012178 2.674e-08 au
q 2.838592340644412 1.3137e-07 au
i 10.93360195142845 4.3835e-06 deg
node 140.1159727685634 2.4302e-05 deg
peri 134.1513430217585 3.4073e-05 deg
M 289.8055128600315 2.3242e-05 deg
tp 2459002.013341356499
(2020-Jun-01.51334136)
0.00013414 TDB
period 2059.204487100471
5.64
2.6075e-05
7.139e-08
d
yr
n .1748247938731473 2.2137e-09 deg/d
Q 3.496661609379944 2.9518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      7954 days (21.78 yr)  
   first obs. used      1997-08-01  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:07:46  

Additional Information
 Earth MOID = 1.83471 au 
 Jupiter MOID = 1.74407 au 
 T_jup = 3.167 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO474250  
diameter diameter 4.950 km 0.940 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.315   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39269 (2001 AK9)          Discovered 2001-Jan-02 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 AK9 = 1998 QR35 = 1999 VW179 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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