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541173 (2011 AZ81)
Classification: Main-belt Asteroid          SPK-ID: 2541173
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07931274108495717 8.5268e-08  
a 2.860943150501436 5.4661e-08 au
q 2.634033907146933 2.4869e-07 au
i 6.836972268687894 8.1115e-06 deg
node 101.5723641431958 6.9413e-05 deg
peri 250.0184607204933 9.4566e-05 deg
M 131.4926697906949 6.0374e-05 deg
tp 2458554.903285631354
(2019-Mar-12.40328563)
0.00030237 TDB
period 1767.511584810482
4.84
5.0655e-05
1.387e-07
d
yr
n .203676175643624 5.8371e-09 deg/d
Q 3.087852393855938 5.8996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      3693 days (10.11 yr)  
   first obs. used      2011-01-03  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58613  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:22  

Additional Information
 Earth MOID = 1.63566 au 
 Jupiter MOID = 2.26096 au 
 T_jup = 3.287 
[ 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 17.39   n/a MPCxxxxx  

541173 (2011 AZ81)          Discovered 2011-Jan-03 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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