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JPL Small-Body Database Browser
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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06135353132029805 4.5968e-08  
a 2.384670231588412 1.2495e-08 au
q 2.23836229184607 1.062e-07 au
i 6.034075564119996 4.0999e-06 deg
node 274.0568508500743 4.2524e-05 deg
peri 268.9248911821108 5.5006e-05 deg
M 138.0393640345104 3.3424e-05 deg
tp 2458484.747464875153
(2019-Jan-01.24746488)
0.00012537 TDB
period 1345.057722799464
3.68
1.0572e-05
2.894e-08
d
yr
n .2676465060924919 2.1037e-09 deg/d
Q 2.530978171330754 1.3262e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1159  
   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      .5051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:38:21  

Additional Information
 Earth MOID = 1.24997 au 
 Jupiter MOID = 2.46682 au 
 T_jup = 3.526 
[ 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 15.3   n/a MPO474696  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2033-Apr-23 06:33 < 00:01 Iris 0.0276519497135994 0.0276482943162896 0.0276556057676158 5.24611665187355 5.24611661224489 2463710.773261501 0.679639456791134 285.875106680624 48.1923048140863 51.4144610887321 67677.7212717518 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2036-Dec-30 15:38 < 00:01 Iris 0.0211748448824194 0.0211732252616607 0.0211764657070859 5.35018415061777 5.35018409987384 2465058.151340964 0.712165378944481 324.34289200291 48.3260238901334 78.3597890293261 64209.5530654958 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2040-Sep-06 02:55 < 00:01 Iris 0.0220645511557103 0.0220619204653861 0.0220671836535868 5.45195686870923 5.4519568209205 2466403.621224213 0.743766556548473 363.17385274079 48.3316219535445 -70.1928485613071 64307.6775660414 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2044-May-15 22:04 < 00:01 Iris 0.0389264020998937 0.0389195162695236 0.0389332883827648 5.65987207379284 5.65987204769995 2467751.419289428 0.761831113435218 403.145363685518 48.3838651933733 -31.8760381003742 64711.6095691442 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2048-Jan-22 20:31 < 00:01 Iris 0.0348571604033424 0.034849890131645 0.0348644313895718 5.64468981586443 5.64468978664707 2469098.354728869 0.806486065632746 440.933823199704 48.5212562077241 -34.9519058915817 62307.5700504562 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2051-Sep-29 07:28 < 00:01 Iris 0.0466679080068857 0.046659194886058 0.0466766214873158 5.75765988344669 5.75765986205186 2470443.810987110 0.834314818614031 480.574977785595 48.4957459502326 -25.4609193750316 63243.7082274695 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38
2059-Feb-11 12:47 < 00:01 Iris 0.0481752774732691 0.0481650848423169 0.0481854705546911 5.81805158001982 5.81805155950956 2473136.032865415 0.917660384834871 559.181997989007 48.5665806139755 -24.7640284592618 63233.0016074458 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 12:38:50 2020-Jan-29 12:38

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