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JPL Small-Body Database Browser
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39265 (2001 AH2)
Classification: Main-belt Asteroid          SPK-ID: 2039265
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723175365365657 3.9773e-08  
a 2.447938054253355 1.0568e-08 au
q 2.026115399150303 9.6051e-08 au
i 14.67537127657893 3.2321e-06 deg
node 113.2304082298791 1.6605e-05 deg
peri 269.7159154909494 1.9283e-05 deg
M 74.19785743214716 8.9518e-06 deg
tp 2458712.171265244528
(2019-Aug-16.67126524)
3.4968e-05 TDB
period 1398.939916922696
3.83
9.0586e-06
2.48e-08
d
yr
n .2573377138254132 1.6664e-09 deg/d
Q 2.869760709356407 1.2388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1484  
   data-arc span      8010 days (21.93 yr)  
   first obs. used      1998-02-26  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:08:54  

Additional Information
 Earth MOID = 1.09118 au 
 Jupiter MOID = 2.70946 au 
 T_jup = 3.433 
[ 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 14.3   n/a MPO449240  
diameter diameter 3.626 km 0.510 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39265 (2001 AH2)          Discovered 2001-Jan-03 by Biggs, J. at Perth
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2001 AH2 = 1998 GA4 = 1999 LA14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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