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541290 (2011 ER82)
Classification: Main-belt Asteroid          SPK-ID: 2541290
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06327927930318927 5.47e-08  
a 3.012537261951984 4.2406e-08 au
q 2.821906075141659 1.6685e-07 au
i 1.71683372496744 6.7812e-06 deg
node 131.152380865426 0.00018914 deg
peri 114.5222662938839 0.00019891 deg
M 285.4173992934025 6.5066e-05 deg
tp 2459792.169059245969
(2022-Jul-31.66905925)
0.00034902 TDB
period 1909.840364630093
5.23
4.0326e-05
1.104e-07
d
yr
n .1884974297680249 3.9801e-09 deg/d
Q 3.203168448762308 4.509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7224 days (19.78 yr)  
   first obs. used      2001-05-24  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55801  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:45  

Additional Information
 Earth MOID = 1.80915 au 
 Jupiter MOID = 1.79571 au 
 T_jup = 3.245 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458109.5 (2017-Dec-22.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06399379098567706 5.4726e-08  
q 2.817944947735684 1.6712e-07 au
tp 2457879.018697077889
(2017-May-05.51869708)
0.00032795 TDB
node 131.1654892342351 0.00018922 deg
peri 113.8143188155962 0.00019878 deg
i 1.716638812794978 6.7815e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7224 days (19.78 yr)  
   first obs. used      2001-05-24  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55801  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:45  

Additional Information
 Jupiter MOID = 1.79571 au 
 T_jup = 3.245 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.994963906141825E-15 -8.887617669339799E-15 -1.54913575966268E-12 3.652940579544422E-15 -1.706400812384758E-13 5.039951114724819E-16
q -8.887617669339799E-15 2.792895864063698E-14 9.527077642838246E-12 -1.616573695616893E-14 1.445947807292925E-12 -1.032395462745765E-15
tp -1.54913575966268E-12 9.527077642838246E-12 1.075539743764961E-7 -7.470428770787021E-11 1.999050774634317E-8 2.965755806818637E-12
node 3.652940579544422E-15 -1.616573695616893E-14 -7.470428770787021E-11 3.580560169062833E-8 -3.580281675711176E-8 1.465839739943178E-10
peri -1.706400812384758E-13 1.445947807292925E-12 1.999050774634317E-8 -3.580281675711176E-8 3.951212674935843E-8 -1.459325531829728E-10
i 5.039951114724819E-16 -1.032395462745765E-15 2.965755806818637E-12 1.465839739943178E-10 -1.459325531829728E-10 4.598906322881857E-11

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 16.81   .31626 MPCxxxxx autocmod 2.8

541290 (2011 ER82)          Discovered 2008-Sep-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

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