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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05650500422040756 3.7619e-08  
a 2.708864633422972 1.636e-08 au
q 2.555800225878894 1.0266e-07 au
i 3.214193398686636 4.2388e-06 deg
node 87.93016013352843 8.4977e-05 deg
peri 340.8587424909927 9.6134e-05 deg
M 250.5542145614484 4.6464e-05 deg
tp 2459495.580616568706
(2021-Oct-08.08061657)
0.00021177 TDB
period 1628.468572367285
4.46
1.4753e-05
4.039e-08
d
yr
n .2210665935521693 2.0027e-09 deg/d
Q 2.861929040967051 1.7285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      7487 days (20.50 yr)  
   first obs. used      2000-01-29  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:30:56  

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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