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78430 Andrewpearce (2002 QX48)
Classification: Main-belt Asteroid          SPK-ID: 2078430
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05650500027320089 3.3823e-08  
a 2.708864631887157 1.5062e-08 au
q 2.555800235122308 9.5137e-08 au
i 3.214192115514215 3.7316e-06 deg
node 87.9301717545075 8.3151e-05 deg
peri 340.8587307484947 9.4582e-05 deg
M 250.554215264779 4.6285e-05 deg
tp 2459495.580612966138
(2021-Oct-08.08061297)
0.00021081 TDB
period 1628.468570982372
4.46
1.3582e-05
3.719e-08
d
yr
n .2210665937401729 1.8438e-09 deg/d
Q 2.861929028652004 1.5913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      522  
   data-arc span      7566 days (20.71 yr)  
   first obs. used      2000-01-29  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:53  

Additional Information
 Earth MOID = 1.57017 au 
 Jupiter MOID = 2.29414 au 
 T_jup = 3.359 
[ 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 15.9   n/a MPO436330  

78430 Andrewpearce           Discovered 2002 Aug. 18 by S. F. Hönig on NEAT images taken at Palomar.
Australian amateur astronomer Andrew Pearce (b. 1966) is a very active observer who is regularly involved in the confirmation of new comet and nova discoveries. Since 1982 Pearce has observed more than 150 comets, thereby making a significant contribution to the International Comet Quarterly.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041126/MPCPages.arcLast Updated: 2004-12-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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