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305295 (2008 AH9)
Classification: Main-belt Asteroid          SPK-ID: 2305295
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448385888445704 6.9619e-08  
a 2.720469738306694 3.4168e-08 au
q 2.326440740415995 2.0038e-07 au
i 2.299789031178635 1.0767e-05 deg
node 164.7718751312236 0.00019663 deg
peri 255.6934601811478 0.00020291 deg
M 319.3974738216937 4.7887e-05 deg
tp 2459185.348031538529
(2020-Dec-01.84803154)
0.00021954 TDB
period 1638.944608067894
4.49
3.0877e-05
8.454e-08
d
yr
n .2196535491363518 4.1381e-09 deg/d
Q 3.114498736197393 3.9117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      7480 days (20.48 yr)  
   first obs. used      1999-01-10  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64059  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:34  

Additional Information
 Earth MOID = 1.34038 au 
 Jupiter MOID = 2.2059 au 
 T_jup = 3.342 
[ 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 17.4   n/a MPO476359  

305295 (2008 AH9)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AH9 = 2004 FE104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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