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186143 (2001 TB257)
Classification: Main-belt Asteroid          SPK-ID: 2186143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07454136644733067 4.7639e-08  
a 2.648095865910655 1.6268e-08 au
q 2.450703181582148 1.2775e-07 au
i 1.145982921338737 5.4193e-06 deg
node 202.3126462584213 0.00021882 deg
peri 137.6918917707842 0.00022149 deg
M 250.803182174703 3.6968e-05 deg
tp 2459873.926436573068
(2022-Oct-21.42643657)
0.00016334 TDB
period 1573.979174386596
4.31
1.4504e-05
3.971e-08
d
yr
n .2287196716819951 2.1077e-09 deg/d
Q 2.845488550239163 1.7481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      8102 days (22.18 yr)  
   first obs. used      1999-03-06  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:44:58  

Additional Information
 Earth MOID = 1.44117 au 
 Jupiter MOID = 2.42348 au 
 T_jup = 3.387 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457509.5 (2016-May-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07377098404822481 4.7496e-08  
q 2.454893363540725 1.2732e-07 au
tp 2458293.481001179613
(2018-Jun-23.98100118)
0.00016021 TDB
node 202.3641697635142 0.00021959 deg
peri 136.280975547848 0.0002223 deg
i 1.14221259684707 5.4163e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      8102 days (22.18 yr)  
   first obs. used      1999-03-06  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:44:58  

Additional Information
 Jupiter MOID = 2.42348 au 
 T_jup = 3.387 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.255903036503713E-15 -6.004264676138913E-15 1.911075820738571E-12 7.006908941797021E-15 3.961846773174582E-13 5.766788899735241E-16
q -6.004264676138913E-15 1.62110215157086E-14 -4.224742390381708E-12 -1.927878082249192E-14 -8.899415587649014E-13 -1.626006296996738E-15
tp 1.911075820738571E-12 -4.224742390381708E-12 2.566656653494687E-8 1.508378086072837E-11 5.555341770943883E-9 -4.488614056952646E-13
node 7.006908941797021E-15 -1.927878082249192E-14 1.508378086072837E-11 4.821852624147611E-8 -4.820538167438675E-8 -1.170508357177789E-10
peri 3.961846773174582E-13 -8.899415587649014E-13 5.555341770943883E-9 -4.820538167438675E-8 4.941577106660663E-8 1.169269769743877E-10
i 5.766788899735241E-16 -1.626006296996738E-15 -4.488614056952646E-13 -1.170508357177789E-10 1.169269769743877E-10 2.933646325239924E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.76   n/a E2021B55  

186143 (2001 TB257)          Discovered 2001-Oct-15 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2001 TB257 = 1999 ER1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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