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19903 (3464 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2019903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118897534412627 4.9687e-08  
a 2.439698811813239 8.7311e-09 au
q 1.92275163210719 1.1996e-07 au
i 2.559050084132747 5.2803e-06 deg
node 7.035030086241096 7.127e-05 deg
peri 352.2312670519132 7.1747e-05 deg
M 133.3616888493512 7.6561e-06 deg
tp 2458684.878123874633
(2019-Jul-20.37812387)
2.9028e-05 TDB
period 1391.88305882072
3.81
7.4718e-06
2.046e-08
d
yr
n .2586424180670837 1.3884e-09 deg/d
Q 2.956645991519288 1.0581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      15863 days (43.43 yr)  
   first obs. used      1977-10-07  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:45  

Additional Information
 Earth MOID = .917673 au 
 Jupiter MOID = 2.49495 au 
 T_jup = 3.470 
[ 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 16.2   n/a MPO449097  

19903 (3464 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3464 T-3 = 1996 RX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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