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305313 (2008 AU44)
Classification: Main-belt Asteroid          SPK-ID: 2305313
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07331136237614104 6.578e-08  
a 3.054225613537651 3.9779e-08 au
q 2.8303161728051 2.1279e-07 au
i 9.655820544244376 9.7511e-06 deg
node 142.3266202893468 3.9218e-05 deg
peri 267.6762770505038 8.3369e-05 deg
M 195.505120685075 7.3754e-05 deg
tp 2459891.340558508717
(2022-Nov-07.84055851)
0.00040683 TDB
period 1949.620574201302
5.34
3.8088e-05
1.043e-07
d
yr
n .1846513135754533 3.6074e-09 deg/d
Q 3.278135054270201 4.2695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      7173 days (19.64 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:58:50  

Additional Information
 Earth MOID = 1.86167 au 
 Jupiter MOID = 2.00879 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456928.5 (2014-Sep-28.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07465572102255005 6.4831e-08  
q 2.825284515428281 2.0949e-07 au
tp 2455997.916685067534
(2012-Mar-11.41668507)
0.00037523 TDB
node 142.3538338393345 3.9233e-05 deg
peri 268.6069481058123 8.2548e-05 deg
i 9.655171418397128 9.7509e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      7173 days (19.64 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:58:50  

Additional Information
 Jupiter MOID = 2.00879 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.203101227444213E-15 -1.337839206683313E-14 -1.213870251919678E-11 5.982530312062629E-15 -2.450082923826098E-12 1.426754566095593E-15
q -1.337839206683313E-14 4.388771485969702E-14 4.050551005592722E-11 -1.482412006874592E-14 8.25467862375354E-12 -1.126695877232555E-15
tp -1.213870251919678E-11 4.050551005592722E-11 1.407979474668238E-7 -1.359077915590963E-10 2.727452760567138E-8 -2.445991522609243E-11
node 5.982530312062629E-15 -1.482412006874592E-14 -1.359077915590963E-10 1.539243020619274E-9 -1.542016924832857E-9 1.47715566343238E-10
peri -2.450082923826098E-12 8.25467862375354E-12 2.727452760567138E-8 -1.542016924832857E-9 6.814213775815154E-9 -1.500337629109658E-10
i 1.426754566095593E-15 -1.126695877232555E-15 -2.445991522609243E-11 1.47715566343238E-10 -1.500337629109658E-10 9.508096792981397E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO433967  

305313 (2008 AU44)          Discovered 2008-Jan-10 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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