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91772 (1999 TD203)
Classification: Main-belt Asteroid          SPK-ID: 2091772
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1742938054078531 3.7301e-08  
a 2.976608574089796 1.9182e-08 au
q 2.457804138502042 1.15e-07 au
i 2.225160662798425 4.1342e-06 deg
node 275.1970962226157 0.00013377 deg
peri 188.7117787319524 0.00013465 deg
M 292.6497788027102 1.6279e-05 deg
tp 2459351.427615238394
(2021-May-16.92761524)
8.6725e-05 TDB
period 1875.776192564392
5.14
1.8132e-05
4.964e-08
d
yr
n .1919205507709534 1.8551e-09 deg/d
Q 3.49541300967755 2.2525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51034  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:57:52  

Additional Information
 Earth MOID = 1.4747 au 
 Jupiter MOID = 1.65628 au 
 T_jup = 3.236 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457029.5 (2015-Jan-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706735120428786 3.739e-08  
q 2.471731480278316 1.1495e-07 au
tp 2457473.543876674337
(2016-Mar-26.04387667)
8.0188e-05 TDB
node 275.492581553278 0.0001343 deg
peri 188.4484693867914 0.00013522 deg
i 2.217564563094551 4.128e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51034  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:57:52  

Additional Information
 Jupiter MOID = 1.65628 au 
 T_jup = 3.236 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.398018586610066E-15 -4.257432559790216E-15 2.162156739538782E-13 -9.92882237206279E-15 7.342553307542789E-14 2.99947717225329E-16
q -4.257432559790216E-15 1.321422172701571E-14 -1.56798547308193E-13 1.242749543408997E-14 -1.255564688578693E-13 -5.94246105729639E-16
tp 2.162156739538782E-13 -1.56798547308193E-13 6.430072248391845E-9 -5.619146635391233E-11 1.30039269407653E-9 -7.770602232886912E-13
node -9.92882237206279E-15 1.242749543408997E-14 -5.619146635391233E-11 1.803752005468952E-8 -1.803488898331564E-8 7.348151739143685E-11
peri 7.342553307542789E-14 -1.255564688578693E-13 1.30039269407653E-9 -1.803488898331564E-8 1.828506043832821E-8 -7.358347204450381E-11
i 2.99947717225329E-16 -5.94246105729639E-16 -7.770602232886912E-13 7.348151739143685E-11 -7.358347204450381E-11 1.704071107894536E-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 MPO493514  

91772 (1999 TD203)          Discovered 1999-Oct-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TD203 = 2001 BJ38 = 2009 SY361 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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