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19221 (1993 PD3)
Classification: Main-belt Asteroid          SPK-ID: 2019221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01842765031357013 4.3434e-08  
a 2.151505660803313 6.8502e-09 au
q 2.111858466838363 9.3883e-08 au
i 3.10958494926273 4.0498e-06 deg
node 265.9355678622093 7.3063e-05 deg
peri 228.9728692695636 0.00011865 deg
M 63.75724450361684 9.4417e-05 deg
tp 2458996.354784962049
(2020-May-26.85478496)
0.00030226 TDB
period 1152.689047116731
3.16
5.5051e-06
1.507e-08
d
yr
n .3123131957404151 1.4916e-09 deg/d
Q 2.191152854768263 6.9764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1544  
   data-arc span      11107 days (30.41 yr)  
   first obs. used      1990-09-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55833  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:10  

Additional Information
 Earth MOID = 1.1266 au 
 Jupiter MOID = 2.79043 au 
 T_jup = 3.702 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456445.5 (2013-Jun-02.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01865771267511031 4.3244e-08  
q 2.111726044217642 9.3562e-08 au
tp 2456695.263077933698
(2014-Feb-06.76307793)
0.00030053 TDB
node 265.9995206227049 7.3079e-05 deg
peri 230.4482262494604 0.00011828 deg
i 3.108612144133022 4.049e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1544  
   data-arc span      11107 days (30.41 yr)  
   first obs. used      1990-09-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55833  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:10  

Additional Information
 Jupiter MOID = 2.79043 au 
 T_jup = 3.702 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.870059365023649E-15 -4.035663357351781E-15 -2.130627725777523E-12 -6.374413015055059E-15 -6.269009240910441E-13 1.126013070837286E-15
q -4.035663357351781E-15 8.753887047405711E-15 4.605658884589051E-12 1.311375632667256E-14 1.351910509748203E-12 -2.337219288436379E-15
tp -2.130627725777523E-12 4.605658884589051E-12 9.031866857109953E-8 -8.397912208522282E-12 2.796261477490273E-8 -1.126745162583923E-12
node -6.374413015055059E-15 1.311375632667256E-14 -8.397912208522282E-12 5.340507988546318E-9 -5.334771569555296E-9 1.034618268502858E-10
peri -6.269009240910441E-13 1.351910509748203E-12 2.796261477490273E-8 -5.334771569555296E-9 1.398936836230239E-8 -1.036505209863172E-10
i 1.126013070837286E-15 -2.337219288436379E-15 -1.126745162583923E-12 1.034618268502858E-10 -1.036505209863172E-10 1.639421872173511E-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 14.88   n/a E2021B10  

19221 (1993 PD3)          Discovered 1993-Aug-14 by Elst, E. W. at Caussols
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 PD3 = 1990 RO12 = 1998 AW7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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