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78446 (2002 RT19)
Classification: Main-belt Asteroid          SPK-ID: 2078446
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954522849144238 5.5854e-08  
a 3.086894749724383 2.2776e-08 au
q 2.483554117600414 1.8017e-07 au
i 3.05869506776685 5.5435e-06 deg
node 109.6054436850129 0.00011179 deg
peri 262.6220435568362 0.00011264 deg
M 82.87588639860537 1.3964e-05 deg
tp 2458544.455895588776
(2019-Mar-01.95589559)
7.4853e-05 TDB
period 1980.984876570846
5.42
2.1924e-05
6.002e-08
d
yr
n .1817277881611961 2.0113e-09 deg/d
Q 3.690235381848352 2.7228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1991-09-04  
   last obs. used      2020-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:50  

Additional Information
 Earth MOID = 1.48615 au 
 Jupiter MOID = 1.77794 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456724.5 (2014-Mar-08.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895778591545867 5.4969e-08  
q 2.503671423280601 1.7588e-07 au
tp 2456549.491164215480
(2013-Sep-13.99116422)
7.556e-05 TDB
node 109.9033238351525 0.00011109 deg
peri 260.7519143504956 0.00011208 deg
i 3.064564913713561 5.5636e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1991-09-04  
   last obs. used      2020-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:50  

Additional Information
 Jupiter MOID = 1.77794 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.021644782941147E-15 -9.621781009153658E-15 -1.160242636644198E-12 -1.095358569601076E-14 -2.553411725901358E-13 -2.197478182489764E-15
q -9.621781009153658E-15 3.093325895901975E-14 3.724682576481929E-12 3.674126246944468E-14 8.229571845395295E-13 7.482174638814662E-15
tp -1.160242636644198E-12 3.724682576481929E-12 5.709366538892724E-9 -1.616136993659993E-11 1.178780155699556E-9 3.421400244870899E-13
node -1.095358569601076E-14 3.674126246944468E-14 -1.616136993659993E-11 1.234084100035226E-8 -1.232549410632942E-8 1.816595010763069E-10
peri -2.553411725901358E-13 8.229571845395295E-13 1.178780155699556E-9 -1.232549410632942E-8 1.256207982271677E-8 -1.813020233816353E-10
i -2.197478182489764E-15 7.482174638814662E-15 3.421400244870899E-13 1.816595010763069E-10 -1.813020233816353E-10 3.095348547510694E-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 15.0   n/a MPO412653  

78446 (2002 RT19)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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