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78282 (2002 PF40)
Classification: Main-belt Asteroid          SPK-ID: 2078282
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066320069449843 5.5162e-08  
a 2.90680851812595 2.0833e-08 au
q 2.596849692033404 1.6329e-07 au
i 2.84592910064458 4.4587e-06 deg
node 51.09759070361359 0.00013255 deg
peri 309.4478703373313 0.00013441 deg
M 176.3828809534952 2.3832e-05 deg
tp 2458113.595222632133
(2017-Dec-26.09522263)
0.00011806 TDB
period 1810.185422340472
4.96
1.946e-05
5.328e-08
d
yr
n .1988746542520154 2.138e-09 deg/d
Q 3.216767344218496 2.3054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      650  
   data-arc span      7349 days (20.12 yr)  
   first obs. used      2000-03-05  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:31:53  

Additional Information
 Earth MOID = 1.59489 au 
 Jupiter MOID = 2.22672 au 
 T_jup = 3.275 
[ 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 15.1   n/a MPO337846  
rotation period rot_per 8.50 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

78282 (2002 PF40)          Discovered 2002-Aug-10 by Broughton, J. at Reedy Creek
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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