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447942 (2008 AQ99)
Classification: Main-belt Asteroid          SPK-ID: 2447942
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08490926120277152 6.9518e-08  
a 2.691215349039656 2.3125e-08 au
q 2.46270624201514 1.8812e-07 au
i 10.12322179736396 6.6973e-06 deg
node 286.0436035638788 4.6384e-05 deg
peri 96.94314110189524 7.0137e-05 deg
M 27.25191062955348 4.8877e-05 deg
tp 2458878.428140895869
(2020-Jan-29.92814090)
0.00021884 TDB
period 1612.579384794763
4.42
2.0785e-05
5.691e-08
d
yr
n .2232448234142707 2.8774e-09 deg/d
Q 2.919724456064173 2.5088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      4738 days (12.97 yr)  
   first obs. used      2006-10-11  
   last obs. used      2019-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:24:47  

Additional Information
 Earth MOID = 1.49158 au 
 Jupiter MOID = 2.47675 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457351.5 (2015-Nov-25.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08578769667994816 7.0787e-08  
q 2.460274102803594 1.9199e-07 au
tp 2457258.716064846324
(2015-Aug-24.21606485)
0.00021279 TDB
node 286.2074007622423 4.646e-05 deg
peri 95.3445988370835 6.9202e-05 deg
i 10.11235574216336 6.6993e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      4738 days (12.97 yr)  
   first obs. used      2006-10-11  
   last obs. used      2019-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:24:47  

Additional Information
 Jupiter MOID = 2.47675 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.010862906807785E-15 -1.350718348453497E-14 -6.599718826380546E-12 -3.508786696984099E-15 -1.50570808040406E-12 -1.949705344211127E-14
q -1.350718348453497E-14 3.685932168974112E-14 1.775735658891605E-11 1.517989959428378E-14 4.0466595604755E-12 5.426655486573305E-14
tp -6.599718826380546E-12 1.775735658891605E-11 4.52803392670043E-8 -8.772359162942129E-11 1.099943839985642E-8 3.236499175863634E-11
node -3.508786696984099E-15 1.517989959428378E-14 -8.772359162942129E-11 2.158566966031356E-9 -2.146860095906306E-9 1.401313767201423E-10
peri -1.50570808040406E-12 4.0466595604755E-12 1.099943839985642E-8 -2.146860095906306E-9 4.788966150029511E-9 -1.306397762040378E-10
i -1.949705344211127E-14 5.426655486573305E-14 3.236499175863634E-11 1.401313767201423E-10 -1.306397762040378E-10 4.488005627048134E-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 16.5   n/a MPO456123  

447942 (2008 AQ99)          Discovered 2008-Jan-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

Alternate Designations
 2008 AQ99 = 2006 UH202 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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