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541170 (2011 AJ77)
Classification: Main-belt Asteroid          SPK-ID: 2541170
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065799245026625 5.6887e-08  
a 2.721992788163766 3.1751e-08 au
q 2.159683723488103 1.4851e-07 au
i 24.00766470607203 8.199e-06 deg
node 305.7592002630569 1.3905e-05 deg
peri 109.1213301030131 2.866e-05 deg
M 112.9303378272807 2.0917e-05 deg
tp 2458685.938831746083
(2019-Jul-21.43883175)
9.3994e-05 TDB
period 1640.321140761355
4.49
2.8701e-05
7.858e-08
d
yr
n .2194692191999099 3.84e-09 deg/d
Q 3.284301852839428 3.831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      6653 days (18.21 yr)  
   first obs. used      2002-01-05  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:09  

Additional Information
 Earth MOID = 1.2856 au 
 Jupiter MOID = 2.23798 au 
 T_jup = 3.205 
[ 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 16.45   .36649 E2021B25 autocmod 2.8

541170 (2011 AJ77)          Discovered 2002-Jan-05 by LONEOS at Anderson Mesa
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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