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187611 (2007 AJ1)
Classification: Main-belt Asteroid          SPK-ID: 2187611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09657063365810607 5.6398e-08  
a 2.700381086955832 2.2119e-08 au
q 2.439603574270142 1.5888e-07 au
i 6.725056287387425 4.6653e-06 deg
node 121.5954088450073 4.5044e-05 deg
peri 243.6259496531655 4.9552e-05 deg
M 154.5426113744277 2.2172e-05 deg
tp 2458504.704270451353
(2019-Jan-21.20427045)
9.7138e-05 TDB
period 1620.824576534632
4.44
1.9915e-05
5.452e-08
d
yr
n .2221091691302522 2.729e-09 deg/d
Q 2.961158599641522 2.4255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      8031 days (21.99 yr)  
   first obs. used      1999-03-20  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:07  

Additional Information
 Earth MOID = 1.44426 au 
 Jupiter MOID = 2.47896 au 
 T_jup = 3.351 
[ 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 16.2   n/a MPO449935  

187611 (2007 AJ1)          Discovered 2007-Jan-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2007 AJ1 = 2005 SQ252 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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