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80578 (2000 AJ121)
Classification: Main-belt Asteroid          SPK-ID: 2080578
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06135351561687213 4.4197e-08  
a 2.384670228306787 1.215e-08 au
q 2.238362326213276 1.0252e-07 au
i 6.034075150769822 4.0714e-06 deg
node 274.0568472191 4.1205e-05 deg
peri 268.9249016483123 5.3704e-05 deg
M 138.0393588033146 3.3113e-05 deg
tp 2458484.747485484938
(2019-Jan-01.24748548)
0.00012411 TDB
period 1345.057720022995
3.68
1.0279e-05
2.814e-08
d
yr
n .267646506644968 2.0454e-09 deg/d
Q 2.530978130400297 1.2895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      13590 days (37.21 yr)  
   first obs. used      1982-04-20  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50836  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 19:01:05  

Additional Information
 Earth MOID = 1.24997 au 
 Jupiter MOID = 2.46682 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456966.5 (2014-Nov-05.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06103582711446361 4.4136e-08  
q 2.239830011052991 1.023e-07 au
tp 2457137.288290445581
(2015-Apr-24.78829045)
0.00012658 TDB
node 274.105559038747 4.1194e-05 deg
peri 268.3406505132373 5.3868e-05 deg
i 6.034302937148811 4.0717e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      13590 days (37.21 yr)  
   first obs. used      1982-04-20  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50836  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 19:01:05  

Additional Information
 Jupiter MOID = 2.46682 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.948005182509403E-15 -4.490374157710386E-15 3.961060749499079E-13 -4.715547090186913E-17 1.385250460852449E-13 -2.462119255127672E-15
q -4.490374157710386E-15 1.046580203502398E-14 -1.192745816911108E-12 8.358435956751806E-16 -3.996139420231588E-13 5.82178091769431E-15
tp 3.961060749499079E-13 -1.192745816911108E-12 1.60224357687067E-8 5.949998018086868E-12 4.410308200243741E-9 -3.280135575589383E-13
node -4.715547090186913E-17 8.358435956751806E-16 5.949998018086868E-12 1.696928295238962E-9 -1.685805684800516E-9 -6.93524005988431E-12
peri 1.385250460852449E-13 -3.996139420231588E-13 4.410308200243741E-9 -1.685805684800516E-9 2.901732606984883E-9 6.778316402754753E-12
i -2.462119255127672E-15 5.82178091769431E-15 -3.280135575589383E-13 -6.93524005988431E-12 6.778316402754753E-12 1.65791435829667E-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 15.3   n/a MPO474696  

80578 (2000 AJ121)          Discovered 2000-Jan-05 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 2000 AJ121 = 2002 TR281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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