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312281 (2008 AR128)
Classification: Main-belt Asteroid          SPK-ID: 2312281
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1255735603739867 8.32e-08  
a 2.5705032683531 2.64e-08 au
q 2.247716020993032 2.0174e-07 au
i 8.16073338588224 8.4919e-06 deg
node 275.7842012484298 5.1267e-05 deg
peri 244.7432280075961 6.1322e-05 deg
M 71.5413006582732 3.4593e-05 deg
tp 2459097.356205422265
(2020-Sep-04.85620542)		 0.00014265 TDB
period 1505.309032084682
4.12		 2.319e-05
6.349e-08		 d
yr
n .2391535507505996 3.6843e-09 deg/d
Q 2.893290515713168 2.9715e-08 au
   Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      6346 days (17.37 yr)  
   first obs. used      2004-02-14  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56382  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:10:12  

Additional Information
 Earth MOID = 1.27203 au 
 Jupiter MOID = 2.16715 au 
 T_jup = 3.405 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO455301  

312281 (2008 AR128)          Discovered 2008-Jan-14 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2008 AR128 = 2004 CF106 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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