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21819 (1999 TX32)
Classification: Main-belt Asteroid          SPK-ID: 2021819
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08766185577769539 2.9121e-08  
a 3.16168004236199 1.7976e-08 au
q 2.884521302473236 9.3007e-08 au
i 1.058935534140903 3.3163e-06 deg
node 234.972277199665 0.00018943 deg
peri 19.50029412874797 0.00019087 deg
M 63.32871488403134 2.1292e-05 deg
tp 2459035.278594676284
(2020-Jul-04.77859468)
0.00012246 TDB
period 2053.408254923042
5.62
1.7512e-05
4.795e-08
d
yr
n .1753182783486434 1.4952e-09 deg/d
Q 3.438838782250745 1.9552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1678  
   data-arc span      8895 days (24.35 yr)  
   first obs. used      1997-04-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50612  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:45:55  

Additional Information
 Earth MOID = 1.86994 au 
 Jupiter MOID = 1.59142 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457160.5 (2015-May-18.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08411557892247883 2.9362e-08  
q 2.892040384375908 9.2672e-08 au
tp 2456984.446904700114
(2014-Nov-22.94690470)
0.00013415 TDB
node 235.279913557512 0.00018901 deg
peri 18.94350745302131 0.00019057 deg
i 1.060251222401734 3.3212e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1678  
   data-arc span      8895 days (24.35 yr)  
   first obs. used      1997-04-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50612  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:45:55  

Additional Information
 Jupiter MOID = 1.59142 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.621451756771037E-16 -2.681127713866768E-15 -9.540860685085384E-14 1.110529721607369E-15 -2.153792209965074E-14 -9.91580642028685E-17
q -2.681127713866768E-15 8.588143629779043E-15 -6.277826689177468E-13 8.073897452037285E-15 -1.07729699240954E-13 4.132168543079985E-16
tp -9.540860685085384E-14 -6.277826689177468E-13 1.799626212770102E-8 -1.406279607785707E-11 3.288658944829943E-9 -6.084522549511374E-13
node 1.110529721607369E-15 8.073897452037285E-15 -1.406279607785707E-11 3.572539894456459E-8 -3.572052873876785E-8 3.916518376445895E-11
peri -2.153792209965074E-14 -1.07729699240954E-13 3.288658944829943E-9 -3.572052873876785E-8 3.631760554624474E-8 -3.925870919539297E-11
i -9.91580642028685E-17 4.132168543079985E-16 -6.084522549511374E-13 3.916518376445895E-11 -3.925870919539297E-11 1.103020309648986E-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 13.73   n/a MPO636391  

21819 (1999 TX32)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TX32 = 1998 MG36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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