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541172 (2011 AV81)
Classification: Main-belt Asteroid          SPK-ID: 2541172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828579165650742 6.78e-08  
a 3.107557365674279 4.9657e-08 au
q 2.53931590018063 2.0745e-07 au
i 9.21242839207703 1.1342e-05 deg
node 336.1613118312828 4.2067e-05 deg
peri 312.0582334624992 5.3964e-05 deg
M 128.7199426033504 3.1446e-05 deg
tp 2458485.064484884042
(2019-Jan-01.56448488)
0.00017934 TDB
period 2000.908175009093
5.48
4.796e-05
1.313e-07
d
yr
n .1799183013475189 4.3125e-09 deg/d
Q 3.675798831167928 5.8737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      6263 days (17.15 yr)  
   first obs. used      2003-09-30  
   last obs. used      2020-11-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:22  

Additional Information
 Earth MOID = 1.53256 au 
 Jupiter MOID = 1.62238 au 
 T_jup = 3.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.18   n/a MPCxxxxx  

541172 (2011 AV81)          Discovered 2003-Sep-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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